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9060269 | Find time in milliseconds? | 33 | 2012-01-30 06:42:00 | <p>How can I find the time in milliseconds using PowerShell?</p>
| 100,421 | 941,939 | 2023-01-04 17:26:11 | 9,060,395 | 11 | 2012-01-30 06:58:11 | 520,612 | 2018-10-30 15:05:59 | https://stackoverflow.com/q/9060269 | https://stackoverflow.com/a/9060395 | <p>In PowerShell you can cast a time value to a timespan and call the <a href="https://learn.microsoft.com/en-us/dotnet/api/system.timespan.totalmilliseconds?view=netframework-4.7.2" rel="noreferrer">TotalMilliseconds</a> method:</p>
<pre><code>([TimeSpan]"00:05:00").TotalMilliseconds # Returns 300000
([TimeSpan] (Ge... | <p>In PowerShell you can cast a time value to a timespan and call the <a href="https://learn.microsoft.com/en-us/dotnet/api/system.timespan.totalmilliseconds?view=netframework-4.7.2" rel="noreferrer">TotalMilliseconds</a> method:</p> <pre><code>([TimeSpan]"00:05:00").TotalMilliseconds # Returns 300000 ([TimeSpan] (Ge... | 526, 2647 | powershell, timespan | <h1>Find time in milliseconds?</h1>
<p>How can I find the time in milliseconds using PowerShell?</p>
| q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,175 | bash | # Find time in milliseconds?
How can I find the time in milliseconds using PowerShell? | In PowerShell you can cast a time value to a timespan and call the [TotalMilliseconds](https://learn.microsoft.com/en-us/dotnet/api/system.timespan.totalmilliseconds?view=netframework-4.7.2) method:
```
([TimeSpan]"00:05:00").TotalMilliseconds # Returns 300000
([TimeSpan] (Get-Date).ToShortTimeString()).TotalMillisec... |
6635059 | Filter the output of a command as if it was text | 32 | 2011-07-09 13:35:42 | <p>I have a simple question, but I am also a beginner in PowerShell. I think it has to do with the fact that the output of the <a href="https://learn.microsoft.com/en-us/powershell/module/Microsoft.PowerShell.Management/Get-Process" rel="noreferrer">Get-Process</a> command (alias <code>ps</code>) is objects and not tex... | 131,936 | 381,995 | 2021-01-28 10:11:55 | 6,639,359 | 11 | 2011-07-10 05:20:53 | 526,535 | 2019-10-26 07:45:46 | https://stackoverflow.com/q/6635059 | https://stackoverflow.com/a/6639359 | <p>The other answers are right of course about your specific question of starting services that have "sql" in their name, but to answer the generic question:</p>
<p>You can do <code>Get-Service | Out-String</code>, and you will get the output as string, much like how Unix commands work.</p>
<p>Also when the output is... | <p>The other answers are right of course about your specific question of starting services that have "sql" in their name, but to answer the generic question:</p> <p>You can do <code>Get-Service | Out-String</code>, and you will get the output as string, much like how Unix commands work.</p> <p>Also when the output is... | 526 | powershell | <h1>Filter the output of a command as if it was text</h1>
<p>I have a simple question, but I am also a beginner in PowerShell. I think it has to do with the fact that the output of the <a href="https://learn.microsoft.com/en-us/powershell/module/Microsoft.PowerShell.Management/Get-Process" rel="noreferrer">Get-Process<... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,176 | bash | # Filter the output of a command as if it was text
I have a simple question, but I am also a beginner in PowerShell. I think it has to do with the fact that the output of the [Get-Process](https://learn.microsoft.com/en-us/powershell/module/Microsoft.PowerShell.Management/Get-Process) command (alias `ps`) is objects a... | The other answers are right of course about your specific question of starting services that have "sql" in their name, but to answer the generic question:
You can do `Get-Service | Out-String`, and you will get the output as string, much like how Unix commands work.
Also when the output is piped to non-PowerShell com... |
5545117 | Firefox refresh current tab from command-line | 31 | 2011-04-04 22:38:38 | <p>I'd like to trigger a tab refresh on Firefox from a command line. I'm working on a web app and the refresh goes after the app compiles. I trigger the compile from a command in my IDE. It's not a fixed url, nor can it be derived from the open file in the IDE. Thus, the currently open url in the active tab.</p>
<p>Th... | 16,694 | 691,910 | 2023-01-25 20:14:35 | 57,236,737 | 11 | 2019-07-27 23:09:36 | 175,830 | 2019-07-27 23:09:36 | https://stackoverflow.com/q/5545117 | https://stackoverflow.com/a/57236737 | <p>Here's an updated version of @geekQ's script that will return focus to the previous program (however, the firefox window will still be pulled to the top).</p>
<pre><code>#!/bin/bash
CURRENT_WID=$(xdotool getwindowfocus)
WID=$(xdotool search --name "Mozilla Firefox")
xdotool windowactivate $WID
xdotool key F5
xdo... | <p>Here's an updated version of @geekQ's script that will return focus to the previous program (however, the firefox window will still be pulled to the top).</p> <pre><code>#!/bin/bash CURRENT_WID=$(xdotool getwindowfocus) WID=$(xdotool search --name "Mozilla Firefox") xdotool windowactivate $WID xdotool key F5 xdo... | 390, 691, 1362 | automation, firefox, shell | <h1>Firefox refresh current tab from command-line</h1>
<p>I'd like to trigger a tab refresh on Firefox from a command line. I'm working on a web app and the refresh goes after the app compiles. I trigger the compile from a command in my IDE. It's not a fixed url, nor can it be derived from the open file in the IDE. Thu... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,177 | bash | # Firefox refresh current tab from command-line
I'd like to trigger a tab refresh on Firefox from a command line. I'm working on a web app and the refresh goes after the app compiles. I trigger the compile from a command in my IDE. It's not a fixed url, nor can it be derived from the open file in the IDE. Thus, the cu... | Here's an updated version of @geekQ's script that will return focus to the previous program (however, the firefox window will still be pulled to the top).
```
#!/bin/bash
CURRENT_WID=$(xdotool getwindowfocus)
WID=$(xdotool search --name "Mozilla Firefox")
xdotool windowactivate $WID
xdotool key F5
xdotool windowact... |
42568201 | Jenkins pipeline sh does not seem to respect pipe in shell command | 26 | 2017-03-02 23:56:19 | <p>I am using a Jenkinsfile in a pipeline on version 2.32.2. </p>
<p>For various reasons I want to extract the version string from the pom. I was hoping I wouldn't have to add the maven help plugin and use evaluate. </p>
<p>I quickly came up with a little sed expression to get it out of the pom which uses pipes and... | 45,692 | 1,813,687 | 2023-07-06 12:54:19 | 58,333,393 | 11 | 2019-10-11 02:16:45 | 9,254,190 | 2019-10-11 02:16:45 | https://stackoverflow.com/q/42568201 | https://stackoverflow.com/a/58333393 | <p>I know this kind of late answer, but whoever you who needs the solution without eval you can use <code>/bin/bash -c "script"</code> to make pipe works</p>
<pre><code>script {
POM_VERSION = sh(script: "/bin/bash -c 'sed -n \'/<version>/,/<version/p\' pom.xml | head -1 | sed \'s/[[:blank:]]*<\/*versio... | <p>I know this kind of late answer, but whoever you who needs the solution without eval you can use <code>/bin/bash -c "script"</code> to make pipe works</p> <pre><code>script { POM_VERSION = sh(script: "/bin/bash -c 'sed -n \'/<version>/,/<version/p\' pom.xml | head -1 | sed \'s/[[:blank:]]*<\/*versio... | 5813, 57788, 64999, 118285 | jenkins, jenkins-pipeline, pipe, subshell | <h1>Jenkins pipeline sh does not seem to respect pipe in shell command</h1>
<p>I am using a Jenkinsfile in a pipeline on version 2.32.2. </p>
<p>For various reasons I want to extract the version string from the pom. I was hoping I wouldn't have to add the maven help plugin and use evaluate. </p>
<p>I quickly came u... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,178 | bash | # Jenkins pipeline sh does not seem to respect pipe in shell command
I am using a Jenkinsfile in a pipeline on version 2.32.2.
For various reasons I want to extract the version string from the pom. I was hoping I wouldn't have to add the maven help plugin and use evaluate.
I quickly came up with a little sed express... | I know this kind of late answer, but whoever you who needs the solution without eval you can use `/bin/bash -c "script"` to make pipe works
```
script {
POM_VERSION = sh(script: "/bin/bash -c 'sed -n \'/<version>/,/<version/p\' pom.xml | head -1 | sed \'s/[[:blank:]]*<\/*version>//g\'\''", returnStdout: true)
... |
202432 | How to best capture and log scp output? | 26 | 2008-10-14 19:08:52 | <p>I am trying to capture output from an install script (that uses scp) and log it. However, I am not getting everything that scp is printing out, namely, the progress bar. </p>
<p>screen output:</p>
<blockquote>
<p>Copying
/user2/cdb/builds/tmp/uat/myfiles/* to
server /users/myfiles as cdb</p>
<p>cdb@se... | 77,493 | 807 | 2024-07-11 14:17:56 | 202,479 | 11 | 2008-10-14 19:21:37 | 27,653 | 2008-10-14 19:21:37 | https://stackoverflow.com/q/202432 | https://stackoverflow.com/a/202479 | <p>It looks like your just missing whether the scp was succesful or not from the log. </p>
<p>I'm guessing the scroll bar doesn't print to stdout and uses ncurses or some other kind of TUI?</p>
<p>You could just look at the return value of scp to see whether it was successful. Like </p>
<pre><code>scp myfile user@ho... | <p>It looks like your just missing whether the scp was succesful or not from the log. </p> <p>I'm guessing the scroll bar doesn't print to stdout and uses ncurses or some other kind of TUI?</p> <p>You could just look at the return value of scp to see whether it was successful. Like </p> <pre><code>scp myfile user@ho... | 390, 942, 3149 | logging, scp, shell | <h1>How to best capture and log scp output?</h1>
<p>I am trying to capture output from an install script (that uses scp) and log it. However, I am not getting everything that scp is printing out, namely, the progress bar. </p>
<p>screen output:</p>
<blockquote>
<p>Copying
/user2/cdb/builds/tmp/uat/myfiles/* to
... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,179 | bash | # How to best capture and log scp output?
I am trying to capture output from an install script (that uses scp) and log it. However, I am not getting everything that scp is printing out, namely, the progress bar.
screen output:
> Copying
> /user2/cdb/builds/tmp/uat/myfiles/* to
> server /users/myfiles as cdb
>
> cdb@... | It looks like your just missing whether the scp was succesful or not from the log.
I'm guessing the scroll bar doesn't print to stdout and uses ncurses or some other kind of TUI?
You could just look at the return value of scp to see whether it was successful. Like
```
scp myfile user@host.com:. && echo success!
```
... |
30568727 | Enter-PSSession to remote server fails with "cannot find the computer" | 25 | 2015-06-01 08:19:24 | <p>My desktop is win7 and I am trying to connect to a server 2012.<br>
Both hosts are on the same domain. </p>
<p>If I do:</p>
<pre><code>Enter-PSSession -ComputerName *ServerName***
</code></pre>
<p>I get the following failure message from winrm </p>
<blockquote>
<p>Enter-PSSession : Connecting to remote ser... | 77,931 | 4,960,470 | 2023-02-13 08:54:58 | 30,747,948 | 11 | 2015-06-10 05:41:23 | 4,960,470 | 2015-06-10 05:41:23 | https://stackoverflow.com/q/30568727 | https://stackoverflow.com/a/30747948 | <p>After talking to our domain admin I think I found the cause of the problem.<br>
The server is in a resource domain which only has a one way trust to the main OU.<br>
This explains why I can do PS remoting from the server to the clients but not vice versa.<br>
I found that I can use the IP address with the <code>-Cre... | <p>After talking to our domain admin I think I found the cause of the problem.<br> The server is in a resource domain which only has a one way trust to the main OU.<br> This explains why I can do PS remoting from the server to the clients but not vice versa.<br> I found that I can use the IP address with the <code>-Cre... | 63177, 73157 | powershell-3.0, powershell-remoting | <h1>Enter-PSSession to remote server fails with "cannot find the computer"</h1>
<p>My desktop is win7 and I am trying to connect to a server 2012.<br>
Both hosts are on the same domain. </p>
<p>If I do:</p>
<pre><code>Enter-PSSession -ComputerName *ServerName***
</code></pre>
<p>I get the following failure messag... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,180 | bash | # Enter-PSSession to remote server fails with "cannot find the computer"
My desktop is win7 and I am trying to connect to a server 2012.
Both hosts are on the same domain.
If I do:
```
Enter-PSSession -ComputerName *ServerName***
```
I get the following failure message from winrm
> Enter-PSSession : Connecting t... | After talking to our domain admin I think I found the cause of the problem.
The server is in a resource domain which only has a one way trust to the main OU.
This explains why I can do PS remoting from the server to the clients but not vice versa.
I found that I can use the IP address with the `-Credential` optio... |
27458502 | How to run interactive shell command inside node.js? | 25 | 2014-12-13 11:54:31 | <p>I have to run some interactive shell command inside node.js. Lets our interactive shell be <code>$ python</code>:</p>
<pre><code>var cp = require('child_process');
var pythonChildProcess = cp.spawn('python');
pythonChildProcess.stdout.on("data", function(data) {
console.log('data successfully written!', data); /... | 33,342 | 2,685,677 | 2019-03-07 13:09:17 | 27,459,402 | 11 | 2014-12-13 13:36:15 | 1,233,251 | 2014-12-13 14:52:06 | https://stackoverflow.com/q/27458502 | https://stackoverflow.com/a/27459402 | <p>First and foremost, one of the things preventing node from interfacing with other interactive shells is that the child application must keep its "interactive" behavior, even when <code>stdin</code> doesn't look like a terminal. <code>python</code> here knew that its <code>stdin</code> wasn't a terminal, so it refuse... | <p>First and foremost, one of the things preventing node from interfacing with other interactive shells is that the child application must keep its "interactive" behavior, even when <code>stdin</code> doesn't look like a terminal. <code>python</code> here knew that its <code>stdin</code> wasn't a terminal, so it refuse... | 3, 390, 46426 | javascript, node.js, shell | <h1>How to run interactive shell command inside node.js?</h1>
<p>I have to run some interactive shell command inside node.js. Lets our interactive shell be <code>$ python</code>:</p>
<pre><code>var cp = require('child_process');
var pythonChildProcess = cp.spawn('python');
pythonChildProcess.stdout.on("data", functio... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,181 | bash | # How to run interactive shell command inside node.js?
I have to run some interactive shell command inside node.js. Lets our interactive shell be `$ python`:
```
var cp = require('child_process');
var pythonChildProcess = cp.spawn('python');
pythonChildProcess.stdout.on("data", function(data) {
console.log('data s... | First and foremost, one of the things preventing node from interfacing with other interactive shells is that the child application must keep its "interactive" behavior, even when `stdin` doesn't look like a terminal. `python` here knew that its `stdin` wasn't a terminal, so it refused to work. This can be overridden by... |
20602675 | trapping signal from "docker stop" in bash | 25 | 2013-12-16 02:47:01 | <p>i have an entry point script in a docker container that looks something like the following:</p>
<pre><code>#!/bin/bash
echo starting up
function shut_down() {
echo shutting down
pid=$(ps -e | grep myapp | awk '{print $1}')
kill -SIGTERM $pid
exit
}
trap "shut_down" SIGKILL SIGTERM SIGHUP SIGIN... | 20,564 | 2,341,555 | 2023-01-22 17:10:39 | 20,606,897 | 11 | 2013-12-16 09:05:06 | 467,255 | 2015-12-14 19:25:46 | https://stackoverflow.com/q/20602675 | https://stackoverflow.com/a/20606897 | <p>Have a look at <a href="https://github.com/lgierth/docker-exec/blob/master/docker-exec" rel="noreferrer">this</a>, could be inspiring :-)</p>
<p><strong>UPDATE:</strong></p>
<p>@nick-humrich here it is is my lamer copy & past (credit goes to the original author <a href="https://github.com/lgierth" rel="norefer... | <p>Have a look at <a href="https://github.com/lgierth/docker-exec/blob/master/docker-exec" rel="noreferrer">this</a>, could be inspiring :-)</p> <p><strong>UPDATE:</strong></p> <p>@nick-humrich here it is is my lamer copy & past (credit goes to the original author <a href="https://github.com/lgierth" rel="norefer... | 387, 90304 | bash, docker | <h1>trapping signal from "docker stop" in bash</h1>
<p>i have an entry point script in a docker container that looks something like the following:</p>
<pre><code>#!/bin/bash
echo starting up
function shut_down() {
echo shutting down
pid=$(ps -e | grep myapp | awk '{print $1}')
kill -SIGTERM $pid
e... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,182 | bash | # trapping signal from "docker stop" in bash
i have an entry point script in a docker container that looks something like the following:
```
#!/bin/bash
echo starting up
function shut_down() {
echo shutting down
pid=$(ps -e | grep myapp | awk '{print $1}')
kill -SIGTERM $pid
exit
}
trap "shut_do... | Have a look at [this](https://github.com/lgierth/docker-exec/blob/master/docker-exec), could be inspiring :-)
**UPDATE:**
@nick-humrich here it is is my lamer copy & past (credit goes to the original author <https://github.com/lgierth> )
```
#!/bin/bash
function ensure_started_container {
exists=`docker ps -q | g... |
7338395 | Is it possible to reset the runspace in Powershell ISE? | 25 | 2011-09-07 18:00:33 | <p>One of the features of <a href="http://powergui.org/index.jspa" rel="noreferrer">PowerGUI</a> is the ability to reset the <a href="http://msdn.microsoft.com/en-us/library/system.management.automation.runspaces.runspace.aspx" rel="noreferrer">Powershell Runspace</a> as demonstrated in <a href="http://dmitrysotnikov.w... | 25,762 | 95,195 | 2013-06-24 09:33:03 | 7,341,211 | 11 | 2011-09-07 22:23:54 | 6,920 | 2013-06-24 09:33:03 | https://stackoverflow.com/q/7338395 | https://stackoverflow.com/a/7341211 | <p>I wrote a module called "ISE Session Tools" to do this a few months back. Essentially the runspace in ISE is equated to a "Tab" container, of which its child documents share the runspace. My script looks at the current open files, remembers them, creates a new Tab (runspace) and closes the old one, then adds the fil... | <p>I wrote a module called "ISE Session Tools" to do this a few months back. Essentially the runspace in ISE is equated to a "Tab" container, of which its child documents share the runspace. My script looks at the current open files, remembers them, creates a new Tab (runspace) and closes the old one, then adds the fil... | 526, 22864 | powershell, powershell-ise | <h1>Is it possible to reset the runspace in Powershell ISE?</h1>
<p>One of the features of <a href="http://powergui.org/index.jspa" rel="noreferrer">PowerGUI</a> is the ability to reset the <a href="http://msdn.microsoft.com/en-us/library/system.management.automation.runspaces.runspace.aspx" rel="noreferrer">Powershell... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,183 | bash | # Is it possible to reset the runspace in Powershell ISE?
One of the features of [PowerGUI](http://powergui.org/index.jspa) is the ability to reset the [Powershell Runspace](http://msdn.microsoft.com/en-us/library/system.management.automation.runspaces.runspace.aspx) as demonstrated in [this article](http://dmitrysotn... | I wrote a module called "ISE Session Tools" to do this a few months back. Essentially the runspace in ISE is equated to a "Tab" container, of which its child documents share the runspace. My script looks at the current open files, remembers them, creates a new Tab (runspace) and closes the old one, then adds the files ... |
39878202 | powershell mandatory parameter with default value shown | 24 | 2016-10-05 15:33:07 | <p>I am looking for a way to have an PowerShell script ask for an parameter which needs to be mandatory, but shown with an default value, e.g.:</p>
<pre><code> .\psscript
Supply values for the following parameters:
parameter1[default value]:
parameter2[1234]:
</code></pre>
<p>I want to ask for input bu... | 81,418 | 6,927,276 | 2020-11-09 18:35:41 | 39,881,126 | 11 | 2016-10-05 18:19:55 | 3,776,535 | 2016-10-05 18:19:55 | https://stackoverflow.com/q/39878202 | https://stackoverflow.com/a/39881126 | <p>Here's a <em>short</em> example that might help: </p>
<pre><code> [CmdletBinding()]
Param(
$SqlServiceAccount = (Read-Host -prompt "SqlServiceAccount ($($env:computername + "_sa"))"),
$SqlServiceAccountPwd = (Read-Host -prompt "SqlServiceAccountPwd")
)
if (!$SqlServiceAccount) { $Sql... | <p>Here's a <em>short</em> example that might help: </p> <pre><code> [CmdletBinding()] Param( $SqlServiceAccount = (Read-Host -prompt "SqlServiceAccount ($($env:computername + "_sa"))"), $SqlServiceAccountPwd = (Read-Host -prompt "SqlServiceAccountPwd") ) if (!$SqlServiceAccount) { $Sql... | 360, 526 | parameters, powershell | <h1>powershell mandatory parameter with default value shown</h1>
<p>I am looking for a way to have an PowerShell script ask for an parameter which needs to be mandatory, but shown with an default value, e.g.:</p>
<pre><code> .\psscript
Supply values for the following parameters:
parameter1[default value]:
... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,184 | bash | # powershell mandatory parameter with default value shown
I am looking for a way to have an PowerShell script ask for an parameter which needs to be mandatory, but shown with an default value, e.g.:
```
.\psscript
Supply values for the following parameters:
parameter1[default value]:
parameter2[1234]:... | Here's a *short* example that might help:
```
[CmdletBinding()]
Param(
$SqlServiceAccount = (Read-Host -prompt "SqlServiceAccount ($($env:computername + "_sa"))"),
$SqlServiceAccountPwd = (Read-Host -prompt "SqlServiceAccountPwd")
)
if (!$SqlServiceAccount) { $SqlServiceAccount = $env:C... |
8094562 | How to run BASH script in my Android? | 24 | 2011-11-11 13:20:00 | <p>My same BASH script is working in Fedora/CentOS.</p>
<p>But I am testing one <code>Android eee pad transformer</code>.
<img src="https://i.sstatic.net/8dvzw.jpg" alt="enter image description here"></p>
<p>Where i have terminal access and i wrote a small test script. But its not working, how can i fix it? what am ... | 121,059 | null | 2024-11-15 19:52:24 | 8,094,664 | 11 | 2011-11-11 13:30:07 | 1,023,544 | 2011-11-11 14:09:27 | https://stackoverflow.com/q/8094562 | https://stackoverflow.com/a/8094664 | <p>May be it will work when calling interpreter with a script?</p>
<pre><code>$ bash ./test.sh
</code></pre>
<p>I saw, that although it is specified <code>#!/bin/bash</code> error was posted by <code>sh</code> - may be it do wrong.</p>
<p>UPD</p>
<pre><code>$ sh ./test.sh
</code></pre>
| <p>May be it will work when calling interpreter with a script?</p> <pre><code>$ bash ./test.sh </code></pre> <p>I saw, that although it is specified <code>#!/bin/bash</code> error was posted by <code>sh</code> - may be it do wrong.</p> <p>UPD</p> <pre><code>$ sh ./test.sh </code></pre> | 58, 387, 1386, 5430, 29051 | android, bash, bash4, fedora, linux | <h1>How to run BASH script in my Android?</h1>
<p>My same BASH script is working in Fedora/CentOS.</p>
<p>But I am testing one <code>Android eee pad transformer</code>.
<img src="https://i.sstatic.net/8dvzw.jpg" alt="enter image description here"></p>
<p>Where i have terminal access and i wrote a small test script. ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,185 | bash | # How to run BASH script in my Android?
My same BASH script is working in Fedora/CentOS.
But I am testing one `Android eee pad transformer`.
Where i have terminal access and i wrote a small test script. But its not working, how can i fix it? what am i ... | May be it will work when calling interpreter with a script?
```
$ bash ./test.sh
```
I saw, that although it is specified `#!/bin/bash` error was posted by `sh` - may be it do wrong.
UPD
```
$ sh ./test.sh
``` |
2458793 | How to disable editing my history in bash | 23 | 2010-03-16 23:02:55 | <p>In bash, when I go back in history, edit some command and run it, this edited command is appended to history and the original one is left intact. But every once in a while I somehow manage to affect the original command, i.e. my edit replaces the original command back in history. I can't put my finger on how this ha... | 4,271 | 116,281 | 2019-12-17 17:26:48 | 51,427,080 | 11 | 2018-07-19 15:53:24 | 179,850 | 2018-07-19 15:59:56 | https://stackoverflow.com/q/2458793 | https://stackoverflow.com/a/51427080 | <blockquote>
<p>I somehow manage to affect the original command, i.e. my edit replaces the original command back in history. </p>
</blockquote>
<p>Right. If you go back in your history and edit the line <em>without</em> pressing return to execute the command but instead moving to another history entry, you've just ... | <blockquote> <p>I somehow manage to affect the original command, i.e. my edit replaces the original command back in history. </p> </blockquote> <p>Right. If you go back in your history and edit the line <em>without</em> pressing return to execute the command but instead moving to another history entry, you've just ... | 58, 387, 390, 1231 | bash, command-line, linux, shell | <h1>How to disable editing my history in bash</h1>
<p>In bash, when I go back in history, edit some command and run it, this edited command is appended to history and the original one is left intact. But every once in a while I somehow manage to affect the original command, i.e. my edit replaces the original command ba... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,186 | bash | # How to disable editing my history in bash
In bash, when I go back in history, edit some command and run it, this edited command is appended to history and the original one is left intact. But every once in a while I somehow manage to affect the original command, i.e. my edit replaces the original command back in his... | > I somehow manage to affect the original command, i.e. my edit replaces the original command back in history.
Right. If you go back in your history and edit the line *without* pressing return to execute the command but instead moving to another history entry, you've just *edited* the history entry. If you then list y... |
40910296 | Decoding JSON and a base64-encoded value in a shell script | 23 | 2016-12-01 12:08:58 | <p>I have a JSON and I need to extract a base64-encoded value by particular key and decode it.</p>
<p>JSON has the following structure:</p>
<pre><code>[
{
"LockIndex": 0,
"Key": "Arul/key1",
"Flags": 0,
"Value": "MzAKCg==",
"CreateIndex": 369,
"ModifyIndex": 554
}
]
</code></pre>
<p>In th... | 45,513 | 6,779,170 | 2025-06-22 19:42:48 | 40,913,567 | 11 | 2016-12-01 14:47:48 | 1,646,322 | 2016-12-01 14:47:48 | https://stackoverflow.com/q/40910296 | https://stackoverflow.com/a/40913567 | <p>Using <a href="https://stedolan.github.com/jq/" rel="noreferrer">jq</a> and <a href="https://linux.die.net/man/1/base64" rel="noreferrer"><code>base64</code></a>:</p>
<pre><code>jq -r '.[].Value' < file.json | base64 --decode
</code></pre>
| <p>Using <a href="https://stedolan.github.com/jq/" rel="noreferrer">jq</a> and <a href="https://linux.die.net/man/1/base64" rel="noreferrer"><code>base64</code></a>:</p> <pre><code>jq -r '.[].Value' < file.json | base64 --decode </code></pre> | 390, 1011, 1508, 4387 | base64, decode, json, shell | <h1>Decoding JSON and a base64-encoded value in a shell script</h1>
<p>I have a JSON and I need to extract a base64-encoded value by particular key and decode it.</p>
<p>JSON has the following structure:</p>
<pre><code>[
{
"LockIndex": 0,
"Key": "Arul/key1",
"Flags": 0,
"Value": "MzAKCg==",
"Cre... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,187 | bash | # Decoding JSON and a base64-encoded value in a shell script
I have a JSON and I need to extract a base64-encoded value by particular key and decode it.
JSON has the following structure:
```
[
{
"LockIndex": 0,
"Key": "Arul/key1",
"Flags": 0,
"Value": "MzAKCg==",
"CreateIndex": 369,
"Modify... | Using [jq](https://stedolan.github.com/jq/) and [`base64`](https://linux.die.net/man/1/base64):
```
jq -r '.[].Value' < file.json | base64 --decode
``` |
19059394 | PowerShell Connect to FTP server and get files | 23 | 2013-09-27 20:18:32 | <pre><code>$ftpServer = "ftp.example.com"
$username ="validUser"
$password ="myPassword"
$localToFTPPath = "C:\ToFTP"
$localFromFTPPath = "C:\FromFTP"
$remotePickupDir = "/Inbox"
$remoteDropDir = "/Outbox"
$SSLMode = [AlexPilotti.FTPS.Client.ESSLSupportMode]::ClearText
$ftp = new-object "AlexPilotti.FTPS.Client.FTPSCli... | 207,093 | 2,744,565 | 2022-06-01 08:26:27 | 19,063,042 | 11 | 2013-09-28 03:53:09 | 2,820,200 | 2017-05-02 12:12:34 | https://stackoverflow.com/q/19059394 | https://stackoverflow.com/a/19063042 | <p>Remote pick directory path should be the exact path on the ftp server you are tryng to access..
here is the script to download files from the server..
you can add or modify with SSLMode..</p>
<pre><code>#ftp server
$ftp = "ftp://example.com/"
$user = "XX"
$pass = "XXX"
$SetType = "bin"
$remotePickupDir = Get-C... | <p>Remote pick directory path should be the exact path on the ftp server you are tryng to access.. here is the script to download files from the server.. you can add or modify with SSLMode..</p> <pre><code>#ftp server $ftp = "ftp://example.com/" $user = "XX" $pass = "XXX" $SetType = "bin" $remotePickupDir = Get-C... | 261, 526 | ftp, powershell | <h1>PowerShell Connect to FTP server and get files</h1>
<pre><code>$ftpServer = "ftp.example.com"
$username ="validUser"
$password ="myPassword"
$localToFTPPath = "C:\ToFTP"
$localFromFTPPath = "C:\FromFTP"
$remotePickupDir = "/Inbox"
$remoteDropDir = "/Outbox"
$SSLMode = [AlexPilotti.FTPS.Client.ESSLSupportMode]::Clea... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,188 | bash | # PowerShell Connect to FTP server and get files
```
$ftpServer = "ftp.example.com"
$username ="validUser"
$password ="myPassword"
$localToFTPPath = "C:\ToFTP"
$localFromFTPPath = "C:\FromFTP"
$remotePickupDir = "/Inbox"
$remoteDropDir = "/Outbox"
$SSLMode = [AlexPilotti.FTPS.Client.ESSLSupportMode]::ClearText
$ftp = ... | Remote pick directory path should be the exact path on the ftp server you are tryng to access..
here is the script to download files from the server..
you can add or modify with SSLMode..
```
#ftp server
$ftp = "ftp://example.com/"
$user = "XX"
$pass = "XXX"
$SetType = "bin"
$remotePickupDir = Get-ChildItem 'c:\t... |
1636352 | Using regular expressions in shell script | 23 | 2009-10-28 10:21:59 | <p>What is the correct way to parse a string using regular expressions in a linux shell script? I wrote the following script to print my SO rep on the console using <code>curl</code> and <code>sed</code> (not solely because I'm rep-crazy - I'm trying to learn some shell scripting and regex before switching to linux).</... | 70,797 | 165,297 | 2017-04-08 21:31:02 | 1,636,391 | 11 | 2009-10-28 10:28:58 | 14,860 | 2014-02-26 10:11:08 | https://stackoverflow.com/q/1636352 | https://stackoverflow.com/a/1636391 | <p>The <code>grep</code> command will select the desired line(s) from many but it will not directly manipulate the line. For that, you use <code>sed</code> in a pipeline:</p>
<pre><code>someCommand | grep 'Amarghosh' | sed -e 's/foo/bar/g'
</code></pre>
<p>Alternatively, <code>awk</code> (or <code>perl</code> if avai... | <p>The <code>grep</code> command will select the desired line(s) from many but it will not directly manipulate the line. For that, you use <code>sed</code> in a pipeline:</p> <pre><code>someCommand | grep 'Amarghosh' | sed -e 's/foo/bar/g' </code></pre> <p>Alternatively, <code>awk</code> (or <code>perl</code> if avai... | 18, 58, 390 | linux, regex, shell | <h1>Using regular expressions in shell script</h1>
<p>What is the correct way to parse a string using regular expressions in a linux shell script? I wrote the following script to print my SO rep on the console using <code>curl</code> and <code>sed</code> (not solely because I'm rep-crazy - I'm trying to learn some shel... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,189 | bash | # Using regular expressions in shell script
What is the correct way to parse a string using regular expressions in a linux shell script? I wrote the following script to print my SO rep on the console using `curl` and `sed` (not solely because I'm rep-crazy - I'm trying to learn some shell scripting and regex before sw... | The `grep` command will select the desired line(s) from many but it will not directly manipulate the line. For that, you use `sed` in a pipeline:
```
someCommand | grep 'Amarghosh' | sed -e 's/foo/bar/g'
```
Alternatively, `awk` (or `perl` if available) can be used. It's a far more powerful text processing tool than ... |
52114730 | Is it possible to set Environment variables in Makefile - to be used after | 22 | 2018-08-31 11:42:09 | <p>I am trying to set an Environment variable in a Makefile, so it can be used in another program running in the sam shell as <code>make</code>, but after <code>make</code> has run.</p>
<p>Update: This is not possible according to accepted answer with comments.</p>
<p>Steps:</p>
<ol>
<li>run <code>make test</code> ... | 50,966 | 699,215 | 2023-06-02 10:43:35 | 52,115,997 | 11 | 2018-08-31 12:57:56 | 1,773,798 | 2023-06-02 10:43:35 | https://stackoverflow.com/q/52114730 | https://stackoverflow.com/a/52115997 | <p>If you want the environment variables to be exported to the shell from which you invoked make things are a bit difficult because, as explained by ネロク, you cannot directly export environment variables from a child process (<code>make</code>) to its parent process (the shell from which you invoke <code>make</code>). B... | <p>If you want the environment variables to be exported to the shell from which you invoked make things are a bit difficult because, as explained by ネロク, you cannot directly export environment variables from a child process (<code>make</code>) to its parent process (the shell from which you invoke <code>make</code>). B... | 387, 4301, 13213 | bash, gnu-make, makefile | <h1>Is it possible to set Environment variables in Makefile - to be used after</h1>
<p>I am trying to set an Environment variable in a Makefile, so it can be used in another program running in the sam shell as <code>make</code>, but after <code>make</code> has run.</p>
<p>Update: This is not possible according to acc... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,190 | bash | # Is it possible to set Environment variables in Makefile - to be used after
I am trying to set an Environment variable in a Makefile, so it can be used in another program running in the sam shell as `make`, but after `make` has run.
Update: This is not possible according to accepted answer with comments.
Steps:
1.... | If you want the environment variables to be exported to the shell from which you invoked make things are a bit difficult because, as explained by ネロク, you cannot directly export environment variables from a child process (`make`) to its parent process (the shell from which you invoke `make`). But if you accept to invok... |
40089631 | Replacing only the first occurrence of a word in a string | 22 | 2016-10-17 14:55:07 | <p>I am having some issues with regular expression mainly because I think the information I can find is not specifically for powershell and all the samples I have tried either error or don't work as intended. I am trying to replace the first occurrence of a word in a string with another word but not replace any other o... | 37,003 | 4,900,678 | 2022-07-09 01:08:21 | 40,089,770 | 11 | 2016-10-17 15:02:02 | 1,163,423 | 2022-07-09 01:08:21 | https://stackoverflow.com/q/40089631 | https://stackoverflow.com/a/40089770 | <p>You could capture everything before and behind and replace it:</p>
<pre><code>'My name is Bob, her name is Sara.' -replace '(.*?)name(.*)', '$1baby$2'
</code></pre>
| <p>You could capture everything before and behind and replace it:</p> <pre><code>'My name is Bob, her name is Sara.' -replace '(.*?)name(.*)', '$1baby$2' </code></pre> | 526 | powershell | <h1>Replacing only the first occurrence of a word in a string</h1>
<p>I am having some issues with regular expression mainly because I think the information I can find is not specifically for powershell and all the samples I have tried either error or don't work as intended. I am trying to replace the first occurrence ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,191 | bash | # Replacing only the first occurrence of a word in a string
I am having some issues with regular expression mainly because I think the information I can find is not specifically for powershell and all the samples I have tried either error or don't work as intended. I am trying to replace the first occurrence of a word... | You could capture everything before and behind and replace it:
```
'My name is Bob, her name is Sara.' -replace '(.*?)name(.*)', '$1baby$2'
``` |
28504847 | PowerShell's pipe adds linefeed | 22 | 2015-02-13 17:03:47 | <p>I'm trying to pipe a string into a program's STDIN <em>without</em> any trailing linefeeds (unless that string itself actually ends in a linefeed). I tried googling around, but I only found people trying to print to the <em>console</em> without a trailing linefeed, in which case <code>Write-Host</code> takes a param... | 5,961 | 1,633,117 | 2020-07-07 19:55:17 | 32,981,504 | 11 | 2015-10-06 23:39:33 | 4,424,236 | 2015-10-07 09:38:12 | https://stackoverflow.com/q/28504847 | https://stackoverflow.com/a/32981504 | <h2>Introduction</h2>
<p>Here is my <code>Invoke-RawPipeline</code> function (get latest version from <a href="https://gist.github.com/beatcracker/931613a94a1988d17b31" rel="noreferrer">this Gist)</a>.</p>
<p>Use it to pipe binary data between processes' Standard Output and Standard Input streams. It can read input str... | <h2>Introduction</h2> <p>Here is my <code>Invoke-RawPipeline</code> function (get latest version from <a href="https://gist.github.com/beatcracker/931613a94a1988d17b31" rel="noreferrer">this Gist)</a>.</p> <p>Use it to pipe binary data between processes' Standard Output and Standard Input streams. It can read input str... | 526, 1701, 26698, 47852 | io-redirection, linefeed, powershell, stdin | <h1>PowerShell's pipe adds linefeed</h1>
<p>I'm trying to pipe a string into a program's STDIN <em>without</em> any trailing linefeeds (unless that string itself actually ends in a linefeed). I tried googling around, but I only found people trying to print to the <em>console</em> without a trailing linefeed, in which c... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,192 | bash | # PowerShell's pipe adds linefeed
I'm trying to pipe a string into a program's STDIN *without* any trailing linefeeds (unless that string itself actually ends in a linefeed). I tried googling around, but I only found people trying to print to the *console* without a trailing linefeed, in which case `Write-Host` takes ... | ## Introduction
Here is my `Invoke-RawPipeline` function (get latest version from [this Gist)](https://gist.github.com/beatcracker/931613a94a1988d17b31).
Use it to pipe binary data between processes' Standard Output and Standard Input streams. It can read input stream from file/pipeline and save resulting output stre... |
11744547 | SFTP to send file with bash script | 21 | 2012-07-31 16:14:07 | <p>I'm using key authentication, so password is not an issue. I have a file whose name I know and I simply want to send it to another machine over sftp.</p>
<p>I tried searching but couldn't find this (seemingly simple) question anywhere. Perhaps my Google-fu is simply failing me today.</p>
<p>In short: I'm on my l... | 84,622 | 713,874 | 2020-10-06 20:29:13 | 11,744,766 | 11 | 2012-07-31 16:26:17 | 1,032,785 | 2012-07-31 16:26:17 | https://stackoverflow.com/q/11744547 | https://stackoverflow.com/a/11744766 | <p>You said that you are not interested in other tools, but <code>scp</code> is a much better choice for unattended file transfers. Here is an scp example:</p>
<pre><code>scp test.txt root@remote:/root/dropoff
</code></pre>
| <p>You said that you are not interested in other tools, but <code>scp</code> is a much better choice for unattended file transfers. Here is an scp example:</p> <pre><code>scp test.txt root@remote:/root/dropoff </code></pre> | 387, 1290, 5310, 15398 | bash, file, send, sftp | <h1>SFTP to send file with bash script</h1>
<p>I'm using key authentication, so password is not an issue. I have a file whose name I know and I simply want to send it to another machine over sftp.</p>
<p>I tried searching but couldn't find this (seemingly simple) question anywhere. Perhaps my Google-fu is simply fai... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,193 | bash | # SFTP to send file with bash script
I'm using key authentication, so password is not an issue. I have a file whose name I know and I simply want to send it to another machine over sftp.
I tried searching but couldn't find this (seemingly simple) question anywhere. Perhaps my Google-fu is simply failing me today.
In... | You said that you are not interested in other tools, but `scp` is a much better choice for unattended file transfers. Here is an scp example:
```
scp test.txt root@remote:/root/dropoff
``` |
9258387 | Bash & (ampersand) operator | 21 | 2012-02-13 09:46:12 | <p>I'm trying to run 3 commands in parallel in bash shell:</p>
<pre><code>$ (first command) & (second command) & (third command) & wait
</code></pre>
<p>The problem with this is that if <code>first command</code> fails, for example, the exit code is <code>0</code> (I guess because <code>wait</code> succee... | 38,534 | 247,243 | 2020-08-10 12:24:06 | 9,258,753 | 11 | 2012-02-13 10:16:20 | 650,405 | 2012-02-13 10:16:20 | https://stackoverflow.com/q/9258387 | https://stackoverflow.com/a/9258753 | <p>the best I can think of is:</p>
<pre><code>first & p1=$!
second & p2=$!
...
wait $p1 && wait $p2 && ..
</code></pre>
<p>or</p>
<pre><code>wait $p1 || ( kill $p2 $p3 && exit 1 )
...
</code></pre>
<p>however this still enforces an order for the check of processes, so if the third f... | <p>the best I can think of is:</p> <pre><code>first & p1=$! second & p2=$! ... wait $p1 && wait $p2 && .. </code></pre> <p>or</p> <pre><code>wait $p1 || ( kill $p2 $p3 && exit 1 ) ... </code></pre> <p>however this still enforces an order for the check of processes, so if the third f... | 387, 10021, 15292 | background-process, bash, exit-code | <h1>Bash & (ampersand) operator</h1>
<p>I'm trying to run 3 commands in parallel in bash shell:</p>
<pre><code>$ (first command) & (second command) & (third command) & wait
</code></pre>
<p>The problem with this is that if <code>first command</code> fails, for example, the exit code is <code>0</code> (I g... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,194 | bash | # Bash & (ampersand) operator
I'm trying to run 3 commands in parallel in bash shell:
```
$ (first command) & (second command) & (third command) & wait
```
The problem with this is that if `first command` fails, for example, the exit code is `0` (I guess because `wait` succeeds).
The desired behavior is that if one... | the best I can think of is:
```
first & p1=$!
second & p2=$!
...
wait $p1 && wait $p2 && ..
```
or
```
wait $p1 || ( kill $p2 $p3 && exit 1 )
...
```
however this still enforces an order for the check of processes, so if the third fails immediately you won't notice it until the first and second finishes. |
8841116 | Vim not recognizing aliases when in interactive mode? | 21 | 2012-01-12 19:29:49 | <p>Same question as <a href="https://stackoverflow.com/questions/4642822/commands-executed-from-vim-are-not-recognizing-bash-command-aliases">this</a>, however the solution there didn't work.</p>
<p>I set these variables in my ~/.vimrc:</p>
<pre><code>set shellcmdflag=-ic
set shell=/bin/bash\ -i
</code></pre>
<p>and... | 10,121 | 82,668 | 2020-01-17 13:07:47 | 9,014,154 | 11 | 2012-01-26 05:05:17 | 1,040,358 | 2012-02-09 15:58:26 | https://stackoverflow.com/q/8841116 | https://stackoverflow.com/a/9014154 | <p>I got this to work, via the man page for <code>bash</code>:</p>
<pre><code>set shell=/bin/bash\ --rcfile\ ~/.bash_profile
</code></pre>
<p>Similarly, <code>--init-file</code> works. </p>
<p>Note that <code>\ -i</code> <strong>is not necessary</strong>, though it can be added to the command:</p>
<pre><code>set sh... | <p>I got this to work, via the man page for <code>bash</code>:</p> <pre><code>set shell=/bin/bash\ --rcfile\ ~/.bash_profile </code></pre> <p>Similarly, <code>--init-file</code> works. </p> <p>Note that <code>\ -i</code> <strong>is not necessary</strong>, though it can be added to the command:</p> <pre><code>set sh... | 370, 387 | bash, vim | <h1>Vim not recognizing aliases when in interactive mode?</h1>
<p>Same question as <a href="https://stackoverflow.com/questions/4642822/commands-executed-from-vim-are-not-recognizing-bash-command-aliases">this</a>, however the solution there didn't work.</p>
<p>I set these variables in my ~/.vimrc:</p>
<pre><code>set... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,195 | bash | # Vim not recognizing aliases when in interactive mode?
Same question as [this](https://stackoverflow.com/questions/4642822/commands-executed-from-vim-are-not-recognizing-bash-command-aliases), however the solution there didn't work.
I set these variables in my ~/.vimrc:
```
set shellcmdflag=-ic
set shell=/bin/bash\... | I got this to work, via the man page for `bash`:
```
set shell=/bin/bash\ --rcfile\ ~/.bash_profile
```
Similarly, `--init-file` works.
Note that `\ -i` **is not necessary**, though it can be added to the command:
```
set shell=/bin/bash\ --rcfile\ ~/.bash_profile\ -i
```
*Example*:
`~/.bash_profile` contains
``... |
1007538 | Check if a function exists from a bash script | 21 | 2009-06-17 14:50:16 | <p>How can I determine if a function is already defined in a bash script?</p>
<p>I am trying to make my .bash_login script portable between systems, so I want to add logic to only call a function if it exists. </p>
<p>I want to add <code>__git_ps1()</code> to <code>PS1</code> only if that function exists on that syst... | 18,354 | 19,839 | 2017-10-18 19:16:51 | 1,007,605 | 11 | 2009-06-17 15:00:56 | 47,529 | 2012-07-20 03:51:49 | https://stackoverflow.com/q/1007538 | https://stackoverflow.com/a/1007605 | <pre><code>if type __git_ps1 | grep -q '^function$' 2>/dev/null; then
PS1=whatever
fi
</code></pre>
| <pre><code>if type __git_ps1 | grep -q '^function$' 2>/dev/null; then PS1=whatever fi </code></pre> | 387, 5569 | bash, function | <h1>Check if a function exists from a bash script</h1>
<p>How can I determine if a function is already defined in a bash script?</p>
<p>I am trying to make my .bash_login script portable between systems, so I want to add logic to only call a function if it exists. </p>
<p>I want to add <code>__git_ps1()</code> to <co... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,196 | bash | # Check if a function exists from a bash script
How can I determine if a function is already defined in a bash script?
I am trying to make my .bash_login script portable between systems, so I want to add logic to only call a function if it exists.
I want to add `__git_ps1()` to `PS1` only if that function exists on ... | ```
if type __git_ps1 | grep -q '^function$' 2>/dev/null; then
PS1=whatever
fi
``` |
24683539 | How can I alias a PowerShell function? | 20 | 2014-07-10 18:11:39 | <p>The aim is to call the function <code>hello</code> by calling <code>hello</code> or alias <code>helloworld</code>.</p>
<p><strong>Code:</strong></p>
<pre><code>function hello() {
param(
[string] $name
)
Write-Host "Hello $name!"
}
hello "Utrecht"
helloworld "Utreg"... | 19,361 | 2,777,965 | 2025-06-08 15:44:20 | 24,683,609 | 11 | 2014-07-10 18:16:30 | 1,324,345 | 2024-06-18 12:50:42 | https://stackoverflow.com/q/24683539 | https://stackoverflow.com/a/24683609 | <p>Use the <a href="https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/set-alias" rel="nofollow noreferrer"><code>set-alias</code></a> cmdlet.</p>
<pre><code>set-alias -name helloworld -value hello
</code></pre>
<p>It should be noted though that your function name does not follow the Power... | <p>Use the <a href="https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/set-alias" rel="nofollow noreferrer"><code>set-alias</code></a> cmdlet.</p> <pre><code>set-alias -name helloworld -value hello </code></pre> <p>It should be noted though that your function name does not follow the Power... | 526 | powershell | <h1>How can I alias a PowerShell function?</h1>
<p>The aim is to call the function <code>hello</code> by calling <code>hello</code> or alias <code>helloworld</code>.</p>
<p><strong>Code:</strong></p>
<pre><code>function hello() {
param(
[string] $name
)
Write-Host "Hello $name!"
}
hello ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,197 | bash | # How can I alias a PowerShell function?
The aim is to call the function `hello` by calling `hello` or alias `helloworld`.
**Code:**
```
function hello() {
param(
[string] $name
)
Write-Host "Hello $name!"
}
hello "Utrecht"
helloworld "Utreg"
```
Expected outcome:
```
Hello Utrecht!
Hello Utr... | Use the [`set-alias`](https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/set-alias) cmdlet.
```
set-alias -name helloworld -value hello
```
It should be noted though that your function name does not follow the PowerShell convention and may be confusing to someone more accustomed to using... |
20433932 | Determine XML Node Exists | 20 | 2013-12-06 21:31:39 | <p>This is probably simple, but I'm trying to determine if a node exists in an XML document. I thought I found an answer in this post,
<a href="https://stackoverflow.com/questions/13031110/how-to-check-whether-a-node-exists-or-not-using-powershell-without-getting-excep">How to check whether a node exists or not using p... | 59,392 | 1,558,132 | 2023-08-04 19:45:06 | 20,475,810 | 11 | 2013-12-09 16:41:10 | 1,558,132 | 2013-12-09 16:41:10 | https://stackoverflow.com/q/20433932 | https://stackoverflow.com/a/20475810 | <p>It appears that I was using the wrong syntax for SelectSingleNode. Here is a working example.</p>
<pre><code>[xml]$xml = @'
<?xml version="1.0" encoding="UTF-8"?>
<!-- Vendors we will send and retreive files from Get-Send means we will get a file and send them a file Send means we will only send them a... | <p>It appears that I was using the wrong syntax for SelectSingleNode. Here is a working example.</p> <pre><code>[xml]$xml = @' <?xml version="1.0" encoding="UTF-8"?> <!-- Vendors we will send and retreive files from Get-Send means we will get a file and send them a file Send means we will only send them a... | 19, 526, 24067 | powershell, powershell-2.0, xml | <h1>Determine XML Node Exists</h1>
<p>This is probably simple, but I'm trying to determine if a node exists in an XML document. I thought I found an answer in this post,
<a href="https://stackoverflow.com/questions/13031110/how-to-check-whether-a-node-exists-or-not-using-powershell-without-getting-excep">How to check w... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,198 | bash | # Determine XML Node Exists
This is probably simple, but I'm trying to determine if a node exists in an XML document. I thought I found an answer in this post,
[How to check whether a node exists or not using powershell without getting exception?](https://stackoverflow.com/questions/13031110/how-to-check-whether-a-nod... | It appears that I was using the wrong syntax for SelectSingleNode. Here is a working example.
```
[xml]$xml = @'
<?xml version="1.0" encoding="UTF-8"?>
<!-- Vendors we will send and retreive files from Get-Send means we will get a file and send them a file Send means we will only send them a file-->
<Vendors>
... |
23591273 | Is it possible to use comments when the line is split with backslashes? | 19 | 2014-05-11 10:05:48 | <p>I’d like to embed comments like this</p>
<pre><code>ls -l \
-a \
# comment here
-h \
-t .
</code></pre>
<p>But it seems that’s not possible. Maybe some other variant does exist? Putting a comment right after the backslash or ending a comment with a backslash doesn’t help.</p>
| 5,542 | 685,107 | 2018-10-24 19:49:45 | 23,591,495 | 11 | 2014-05-11 10:29:46 | 1,248,449 | 2014-05-11 12:34:50 | https://stackoverflow.com/q/23591273 | https://stackoverflow.com/a/23591495 | <p>As far as I know, it is not possible, for Bash tries to follow to POSIX guidelines and other standards.
Especially:</p>
<blockquote>
<p>If a <code><newline></code> follows the backslash, the shell shall interpret this as line continuation. The backslash and <code><newline></code>s shall be removed bef... | <p>As far as I know, it is not possible, for Bash tries to follow to POSIX guidelines and other standards. Especially:</p> <blockquote> <p>If a <code><newline></code> follows the backslash, the shell shall interpret this as line continuation. The backslash and <code><newline></code>s shall be removed bef... | 387, 390, 10327 | bash, sh, shell | <h1>Is it possible to use comments when the line is split with backslashes?</h1>
<p>I’d like to embed comments like this</p>
<pre><code>ls -l \
-a \
# comment here
-h \
-t .
</code></pre>
<p>But it seems that’s not possible. Maybe some other variant does exist? Putting a comment right after the backslash or ending a... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,199 | bash | # Is it possible to use comments when the line is split with backslashes?
I’d like to embed comments like this
```
ls -l \
-a \
# comment here
-h \
-t .
```
But it seems that’s not possible. Maybe some other variant does exist? Putting a comment right after the backslash or ending a comment with a backslash doesn’t ... | As far as I know, it is not possible, for Bash tries to follow to POSIX guidelines and other standards.
Especially:
> If a `<newline>` follows the backslash, the shell shall interpret this as line continuation. The backslash and `<newline>`s shall be removed before splitting the input into tokens. Since the escaped `<... |
21252824 | How do I get PowerShell 4 cmdlets such as Test-NetConnection to work on Windows 7? | 19 | 2014-01-21 08:29:58 | <p>The situation. On a Windows 7 SP1 machine, I have updated with Windows6.1-KB2819745-x64-MultiPkg.msu. Furthermore, in PowerShell $PSVersionTable now reports ‘PSVersion 4.0’.</p>
<p>At present, my conclusion is that many PowerShell 4 cmdlets such Test-NetConnection, will only work on Windows 8.1. However, I was wo... | 74,344 | 200,586 | 2020-08-20 07:48:57 | 21,256,909 | 11 | 2014-01-21 11:31:16 | 3,093,031 | 2019-11-13 09:56:03 | https://stackoverflow.com/q/21252824 | https://stackoverflow.com/a/21256909 | <p>You cannot. They rely on the underlying features of the newer OS (8.0 or 8.1) and cannot be ported back to Windows 7 . The alternative is to write your own functions / modules to replicate the new cmdlets using .NET framework methods.</p>
<p>For instance, the <a href="https://learn.microsoft.com/en-us/powershe... | <p>You cannot. They rely on the underlying features of the newer OS (8.0 or 8.1) and cannot be ported back to Windows 7 . The alternative is to write your own functions / modules to replicate the new cmdlets using .NET framework methods.</p> <p>For instance, the <a href="https://learn.microsoft.com/en-us/powershe... | 526, 34595, 95686 | powershell, powershell-4.0, windows-7 | <h1>How do I get PowerShell 4 cmdlets such as Test-NetConnection to work on Windows 7?</h1>
<p>The situation. On a Windows 7 SP1 machine, I have updated with Windows6.1-KB2819745-x64-MultiPkg.msu. Furthermore, in PowerShell $PSVersionTable now reports ‘PSVersion 4.0’.</p>
<p>At present, my conclusion is that many Po... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,200 | bash | # How do I get PowerShell 4 cmdlets such as Test-NetConnection to work on Windows 7?
The situation. On a Windows 7 SP1 machine, I have updated with Windows6.1-KB2819745-x64-MultiPkg.msu. Furthermore, in PowerShell $PSVersionTable now reports ‘PSVersion 4.0’.
At present, my conclusion is that many PowerShell 4 cmdlets... | You cannot. They rely on the underlying features of the newer OS (8.0 or 8.1) and cannot be ported back to Windows 7 . The alternative is to write your own functions / modules to replicate the new cmdlets using .NET framework methods.
For instance, the [Get-FileHash](https://learn.microsoft.com/en-us/powershell/module... |
12700507 | Proper way of printing out an error message | 19 | 2012-10-03 00:48:51 | <p>Is this line the best way to print out an error message in Bash?</p>
<pre><code>echo 'Error: banana' >&2
</code></pre>
<p>I need to update tens of Bash scripts which use all different ways of logging errors and I might as well choose the "right" way to do this and adhere to a standard as I do it...</p>
| 23,803 | 916,332 | 2019-04-15 19:44:06 | 12,700,524 | 11 | 2012-10-03 00:51:38 | 85,371 | 2012-10-03 00:51:38 | https://stackoverflow.com/q/12700507 | https://stackoverflow.com/a/12700524 | <p>On linux, I'd prefer to say</p>
<pre><code>echo "Some error message" >> /dev/stderr
</code></pre>
<p>This will effectively do the same, of course, since <code>/dev/stderr</code> symlinks to <code>/proc/$PID/fd/2</code></p>
| <p>On linux, I'd prefer to say</p> <pre><code>echo "Some error message" >> /dev/stderr </code></pre> <p>This will effectively do the same, of course, since <code>/dev/stderr</code> symlinks to <code>/proc/$PID/fd/2</code></p> | 387 | bash | <h1>Proper way of printing out an error message</h1>
<p>Is this line the best way to print out an error message in Bash?</p>
<pre><code>echo 'Error: banana' >&2
</code></pre>
<p>I need to update tens of Bash scripts which use all different ways of logging errors and I might as well choose the "right" way to do... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,201 | bash | # Proper way of printing out an error message
Is this line the best way to print out an error message in Bash?
```
echo 'Error: banana' >&2
```
I need to update tens of Bash scripts which use all different ways of logging errors and I might as well choose the "right" way to do this and adhere to a standard as I do i... | On linux, I'd prefer to say
```
echo "Some error message" >> /dev/stderr
```
This will effectively do the same, of course, since `/dev/stderr` symlinks to `/proc/$PID/fd/2` |
7034838 | Exit a bash switch statement | 19 | 2011-08-12 01:44:33 | <p>I've written a menu driven bash script that uses a <code>switch case</code> inside of a <code>while</code> loop to perform the various menu options. Everything works just fine. Now I'm trying to improve the program by performing error testing on the user input, but I cannot seem to make it work... </p>
<p>The probl... | 57,062 | 406,543 | 2023-07-14 04:46:25 | 7,038,081 | 11 | 2011-08-12 09:23:23 | 7,552 | 2011-08-12 09:23:23 | https://stackoverflow.com/q/7034838 | https://stackoverflow.com/a/7038081 | <p>Move the body of that <code>case</code> into a function, and you can <code>return</code> from the function at will.</p>
<pre><code>do_A_stuff() {
echo "Choose a month"
read monthVal
if [ "$monthVal" -lt 13 ]
then
cal "$monthVal"
else
return
fi
further tests ...
}
</code></... | <p>Move the body of that <code>case</code> into a function, and you can <code>return</code> from the function at will.</p> <pre><code>do_A_stuff() { echo "Choose a month" read monthVal if [ "$monthVal" -lt 13 ] then cal "$monthVal" else return fi further tests ... } </code></... | 387 | bash | <h1>Exit a bash switch statement</h1>
<p>I've written a menu driven bash script that uses a <code>switch case</code> inside of a <code>while</code> loop to perform the various menu options. Everything works just fine. Now I'm trying to improve the program by performing error testing on the user input, but I cannot seem... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,202 | bash | # Exit a bash switch statement
I've written a menu driven bash script that uses a `switch case` inside of a `while` loop to perform the various menu options. Everything works just fine. Now I'm trying to improve the program by performing error testing on the user input, but I cannot seem to make it work...
The proble... | Move the body of that `case` into a function, and you can `return` from the function at will.
```
do_A_stuff() {
echo "Choose a month"
read monthVal
if [ "$monthVal" -lt 13 ]
then
cal "$monthVal"
else
return
fi
further tests ...
}
```
Then
```
case $whatever in
a|A) do_A_st... |
3632603 | bash variable capture stderr and stdout separately or get exit value | 19 | 2010-09-03 02:03:29 | <p>I need to capture the output and error of a command in my bash script and know whether the command succeeded or not.</p>
<p>At the moment, I am capturing both like this:</p>
<pre><code>output=$(mycommand 2>&1)
</code></pre>
<p>I then need to check the exit value of mycommand. If it failed, I need to do som... | 11,104 | 263,328 | 2016-08-09 04:09:23 | 3,632,669 | 11 | 2010-09-03 02:19:24 | 14,860 | 2010-09-03 02:19:24 | https://stackoverflow.com/q/3632603 | https://stackoverflow.com/a/3632669 | <p>What version of <code>bash</code> are you using? The capture of the output has <em>zero</em> effect on the return code with my version, <code>4.1.5</code>:</p>
<pre><code>pax> false; echo $?
1
pax> echo $?
0
pax> x=$(false 2>&1) ; echo $?
1
</code></pre>
<p>It's not always a good idea to rely on st... | <p>What version of <code>bash</code> are you using? The capture of the output has <em>zero</em> effect on the return code with my version, <code>4.1.5</code>:</p> <pre><code>pax> false; echo $? 1 pax> echo $? 0 pax> x=$(false 2>&1) ; echo $? 1 </code></pre> <p>It's not always a good idea to rely on st... | 276, 387, 4867, 13261, 19156 | bash, capture, stderr, stdout, variables | <h1>bash variable capture stderr and stdout separately or get exit value</h1>
<p>I need to capture the output and error of a command in my bash script and know whether the command succeeded or not.</p>
<p>At the moment, I am capturing both like this:</p>
<pre><code>output=$(mycommand 2>&1)
</code></pre>
<p>I ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,203 | bash | # bash variable capture stderr and stdout separately or get exit value
I need to capture the output and error of a command in my bash script and know whether the command succeeded or not.
At the moment, I am capturing both like this:
```
output=$(mycommand 2>&1)
```
I then need to check the exit value of mycommand.... | What version of `bash` are you using? The capture of the output has *zero* effect on the return code with my version, `4.1.5`:
```
pax> false; echo $?
1
pax> echo $?
0
pax> x=$(false 2>&1) ; echo $?
1
```
It's not always a good idea to rely on standard error being non-empty to detect errors. Many programs don't outpu... |
44693485 | Where do I set environment variables for Django? | 18 | 2017-06-22 07:57:34 | <p>everyone!</p>
<p>Django 1.11 + PostgreSQL 9.6 + Gunicorn + Ubuntu 16.04 in AWS</p>
<p>I want to set environment variables for sensitive info.(django secret key, DB password...) </p>
<p>I studied many articles about setting ways. </p>
<p>But when I tried os.environ['env_name'], </p>
<ol>
<li><p>.bashrc: Not work... | 46,430 | 3,586,239 | 2022-08-02 05:15:52 | 44,693,580 | 11 | 2017-06-22 08:01:43 | 7,925,166 | 2017-06-22 08:01:43 | https://stackoverflow.com/q/44693485 | https://stackoverflow.com/a/44693580 | <p>create a file called .bashrc in your server</p>
<pre><code>export('the_name_in_bashrc', some_value)
</code></pre>
<p>then in the <code>settings.py</code></p>
<pre><code>import os
some_variable = os.environ.get('the_name_in_bashrc')
</code></pre>
| <p>create a file called .bashrc in your server</p> <pre><code>export('the_name_in_bashrc', some_value) </code></pre> <p>then in the <code>settings.py</code></p> <pre><code>import os some_variable = os.environ.get('the_name_in_bashrc') </code></pre> | 243, 387, 549, 9013 | bash, django, environment-variables, ubuntu | <h1>Where do I set environment variables for Django?</h1>
<p>everyone!</p>
<p>Django 1.11 + PostgreSQL 9.6 + Gunicorn + Ubuntu 16.04 in AWS</p>
<p>I want to set environment variables for sensitive info.(django secret key, DB password...) </p>
<p>I studied many articles about setting ways. </p>
<p>But when I tried o... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,204 | bash | # Where do I set environment variables for Django?
everyone!
Django 1.11 + PostgreSQL 9.6 + Gunicorn + Ubuntu 16.04 in AWS
I want to set environment variables for sensitive info.(django secret key, DB password...)
I studied many articles about setting ways.
But when I tried os.environ['env_name'],
1. .bashrc: Not... | create a file called .bashrc in your server
```
export('the_name_in_bashrc', some_value)
```
then in the `settings.py`
```
import os
some_variable = os.environ.get('the_name_in_bashrc')
``` |
38269209 | Using Get-ChildItem -Exclude or -Include returns nothing | 18 | 2016-07-08 14:31:09 | <p>I have a list in my C: directory that has many files. If I try to run an <code>-Exclude</code> on it, I get no returns. Same with <code>-Include</code>. If I use <code>-Filter</code>, it returns what I expected to get back. Am I not understanding what it should be doing?</p>
<p>Here is an example of what I am runnin... | 15,725 | 568,352 | 2025-01-06 21:53:56 | 38,269,316 | 11 | 2016-07-08 14:37:08 | 2,486,496 | 2016-07-08 14:37:08 | https://stackoverflow.com/q/38269209 | https://stackoverflow.com/a/38269316 | <pre><code>Get-ChildItem -Path "C:\*" -Include "*.txt"
</code></pre>
<p>This example, of how <code>-Include</code> should work, will give you the results you were expecting. Note that I provided a wildcard in the path parameter as well, to explicitly define the path as "any file in the root C:" as opposed to "C:" its... | <pre><code>Get-ChildItem -Path "C:\*" -Include "*.txt" </code></pre> <p>This example, of how <code>-Include</code> should work, will give you the results you were expecting. Note that I provided a wildcard in the path parameter as well, to explicitly define the path as "any file in the root C:" as opposed to "C:" its... | 526, 3889, 5997, 95686 | glob, powershell, powershell-4.0, wildcard | <h1>Using Get-ChildItem -Exclude or -Include returns nothing</h1>
<p>I have a list in my C: directory that has many files. If I try to run an <code>-Exclude</code> on it, I get no returns. Same with <code>-Include</code>. If I use <code>-Filter</code>, it returns what I expected to get back. Am I not understanding what... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,205 | bash | # Using Get-ChildItem -Exclude or -Include returns nothing
I have a list in my C: directory that has many files. If I try to run an `-Exclude` on it, I get no returns. Same with `-Include`. If I use `-Filter`, it returns what I expected to get back. Am I not understanding what it should be doing?
Here is an example o... | ```
Get-ChildItem -Path "C:\*" -Include "*.txt"
```
This example, of how `-Include` should work, will give you the results you were expecting. Note that I provided a wildcard in the path parameter as well, to explicitly define the path as "any file in the root C:" as opposed to "C:" itself.
Source:
<https://technet.m... |
32443522 | Triangular background for bash PS1 prompt | 18 | 2015-09-07 17:22:48 | <p>I am trying to get a triangular background for bash PS1 prompt.
<a href="https://i.sstatic.net/g9rGk.png" rel="noreferrer"><img src="https://i.sstatic.net/g9rGk.png" alt="as shown here"></a></p>
<p>I have tried the existing library called <code>powerline</code> but it seems to be heavy for my ageing laptop. I have ... | 14,712 | 2,005,559 | 2025-01-19 15:06:34 | 32,445,282 | 11 | 2015-09-07 19:56:22 | 3,503,302 | 2020-06-08 08:26:28 | https://stackoverflow.com/q/32443522 | https://stackoverflow.com/a/32445282 | <p>You need to have powerline patched fonts installed. <a href="https://github.com/powerline/fonts" rel="nofollow noreferrer">Get them here</a></p>
<p>And you need to configure your terminal to use them. (this ofc depends on your terminal but probably something like settings -> appearance -> fonts) </p>
<p>I've done ... | <p>You need to have powerline patched fonts installed. <a href="https://github.com/powerline/fonts" rel="nofollow noreferrer">Get them here</a></p> <p>And you need to configure your terminal to use them. (this ofc depends on your terminal but probably something like settings -> appearance -> fonts) </p> <p>I've done ... | 387, 5003, 53034 | bash, prompt, ps1 | <h1>Triangular background for bash PS1 prompt</h1>
<p>I am trying to get a triangular background for bash PS1 prompt.
<a href="https://i.sstatic.net/g9rGk.png" rel="noreferrer"><img src="https://i.sstatic.net/g9rGk.png" alt="as shown here"></a></p>
<p>I have tried the existing library called <code>powerline</code> but... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,206 | bash | # Triangular background for bash PS1 prompt
I am trying to get a triangular background for bash PS1 prompt.
[](https://i.sstatic.net/g9rGk.png)
I have tried the existing library called `powerline` but it seems to be heavy for my ageing laptop. I have managed to get the... | You need to have powerline patched fonts installed. [Get them here](https://github.com/powerline/fonts)
And you need to configure your terminal to use them. (this ofc depends on your terminal but probably something like settings -> appearance -> fonts)
I've done something similar if you want a startingpoint: [sbp](ht... |
22389570 | let vs expr vs double parenthesis arithmetic in shell | 18 | 2014-03-13 19:58:35 | <p>When I was first learning shell scripting, a lot of examples I saw used <code>let</code> for basic arithmetic, but later I found out that some environments don't present <code>let</code> as a built-in, but support use of <code>expr</code> instead (though it's significantly slower).</p>
<p>However, it is also possib... | 5,200 | 2,187,548 | 2016-06-08 03:26:20 | 22,389,873 | 11 | 2014-03-13 20:13:20 | 1,126,841 | 2014-03-13 20:13:20 | https://stackoverflow.com/q/22389570 | https://stackoverflow.com/a/22389873 | <p><code>$(( ... ))</code> is defined in the POSIX standard, which is probably as portable as you need to be.</p>
| <p><code>$(( ... ))</code> is defined in the POSIX standard, which is probably as portable as you need to be.</p> | 259, 390, 5481 | arithmetic-expressions, math, shell | <h1>let vs expr vs double parenthesis arithmetic in shell</h1>
<p>When I was first learning shell scripting, a lot of examples I saw used <code>let</code> for basic arithmetic, but later I found out that some environments don't present <code>let</code> as a built-in, but support use of <code>expr</code> instead (though... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,207 | bash | # let vs expr vs double parenthesis arithmetic in shell
When I was first learning shell scripting, a lot of examples I saw used `let` for basic arithmetic, but later I found out that some environments don't present `let` as a built-in, but support use of `expr` instead (though it's significantly slower).
However, it ... | `$(( ... ))` is defined in the POSIX standard, which is probably as portable as you need to be. |
22045175 | Remove non printing chars from bash variable | 18 | 2014-02-26 14:59:54 | <p>I have some variable <code>$a</code>. This variable have non printing characters (carriage return ^M).</p>
<pre><code>>echo $a
some words for compgen
>a+="END"
>echo $a
ENDe words for compgen
</code></pre>
<p>How I can remove that char?
I know that <code>echo "$a"</code> display it correct. But it's not ... | 35,640 | 1,864,033 | 2021-12-19 23:57:37 | 22,046,839 | 11 | 2014-02-26 16:06:29 | 1,126,841 | 2014-02-26 16:06:29 | https://stackoverflow.com/q/22045175 | https://stackoverflow.com/a/22046839 | <p>To remove just the trailing carriage return from <code>a</code>, use</p>
<pre><code>a=${a%$'\r'}
</code></pre>
| <p>To remove just the trailing carriage return from <code>a</code>, use</p> <pre><code>a=${a%$'\r'} </code></pre> | 276, 387 | bash, variables | <h1>Remove non printing chars from bash variable</h1>
<p>I have some variable <code>$a</code>. This variable have non printing characters (carriage return ^M).</p>
<pre><code>>echo $a
some words for compgen
>a+="END"
>echo $a
ENDe words for compgen
</code></pre>
<p>How I can remove that char?
I know that <c... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,208 | bash | # Remove non printing chars from bash variable
I have some variable `$a`. This variable have non printing characters (carriage return ^M).
```
>echo $a
some words for compgen
>a+="END"
>echo $a
ENDe words for compgen
```
How I can remove that char?
I know that `echo "$a"` display it correct. But it's not a solution ... | To remove just the trailing carriage return from `a`, use
```
a=${a%$'\r'}
``` |
20961063 | Passing through -Verbose status to module cmdlets | 18 | 2014-01-06 23:14:13 | <p>I have a PowerShell module that encapsulates a number of commonly-used business functions. It's not generally called from the console; rather, its functions are called by automated deployment and management scripts that import the module.</p>
<p>The module incorporates a logging function that writes to both a centr... | 15,530 | 907,901 | 2018-12-16 16:06:20 | 20,961,341 | 11 | 2014-01-06 23:37:30 | 1,105,996 | 2018-12-16 16:00:56 | https://stackoverflow.com/q/20961063 | https://stackoverflow.com/a/20961341 | <p>There is a variable named $VerbosePreference you can check to see how Verbose output should be handled. However, scripts loaded into a separate scope is giving you the issues. If you read the <code>Get-Help about_scopes</code>, you'll see:</p>
<blockquote>
<p>Script: <br/>
The scope that is created while a sc... | <p>There is a variable named $VerbosePreference you can check to see how Verbose output should be handled. However, scripts loaded into a separate scope is giving you the issues. If you read the <code>Get-Help about_scopes</code>, you'll see:</p> <blockquote> <p>Script: <br/> The scope that is created while a sc... | 526, 67488 | powershell, powershell-module | <h1>Passing through -Verbose status to module cmdlets</h1>
<p>I have a PowerShell module that encapsulates a number of commonly-used business functions. It's not generally called from the console; rather, its functions are called by automated deployment and management scripts that import the module.</p>
<p>The module ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,209 | bash | # Passing through -Verbose status to module cmdlets
I have a PowerShell module that encapsulates a number of commonly-used business functions. It's not generally called from the console; rather, its functions are called by automated deployment and management scripts that import the module.
The module incorporates a l... | There is a variable named $VerbosePreference you can check to see how Verbose output should be handled. However, scripts loaded into a separate scope is giving you the issues. If you read the `Get-Help about_scopes`, you'll see:
> Script:
> The scope that is created while a script file runs.
> Only the commands in ... |
15139552 | Save hash table in PowerShell object notation (PSON) | 18 | 2013-02-28 15:37:17 | <p>The question <a href="https://stackoverflow.com/questions/10743892/loading-a-powershell-hashtable-from-a-file">Loading a PowerShell hashtable from a file?</a> documents how to load a file that contains a hashtable in PSON format into a variable, but how does one save a hashtable to a file in PSON format?</p>
<p>Has... | 12,332 | 134,367 | 2022-08-31 06:35:17 | 15,140,028 | 11 | 2013-02-28 16:00:49 | 9,833 | 2013-02-28 16:00:49 | https://stackoverflow.com/q/15139552 | https://stackoverflow.com/a/15140028 | <p>Try the <code>*-CliXml</code> cmdlets. To save the object:</p>
<pre><code>@{
"name" = "report 0"
"parameters" = @(
@{"name" = "parameter 0"; "default" = 1; "values"=1,2,3,4},
@{"name" = "parameter 1"; "default" = 'A'; "values" = 'A','B','C'}
)
} | Export-Clixml -Pat... | <p>Try the <code>*-CliXml</code> cmdlets. To save the object:</p> <pre><code>@{ "name" = "report 0" "parameters" = @( @{"name" = "parameter 0"; "default" = 1; "values"=1,2,3,4}, @{"name" = "parameter 1"; "default" = 'A'; "values" = 'A','B','C'} ) } | Export-Clixml -Pat... | 526, 1125, 2095, 24067 | expression, powershell, powershell-2.0, serialization | <h1>Save hash table in PowerShell object notation (PSON)</h1>
<p>The question <a href="https://stackoverflow.com/questions/10743892/loading-a-powershell-hashtable-from-a-file">Loading a PowerShell hashtable from a file?</a> documents how to load a file that contains a hashtable in PSON format into a variable, but how d... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,210 | bash | # Save hash table in PowerShell object notation (PSON)
The question [Loading a PowerShell hashtable from a file?](https://stackoverflow.com/questions/10743892/loading-a-powershell-hashtable-from-a-file) documents how to load a file that contains a hashtable in PSON format into a variable, but how does one save a hasht... | Try the `*-CliXml` cmdlets. To save the object:
```
@{
"name" = "report 0"
"parameters" = @(
@{"name" = "parameter 0"; "default" = 1; "values"=1,2,3,4},
@{"name" = "parameter 1"; "default" = 'A'; "values" = 'A','B','C'}
)
} | Export-Clixml -Path c:\hash.xml
```
To rea... |
4468824 | "Command not found" when attempting integer equality in bash | 18 | 2010-12-17 08:35:15 | <p>Ok, this is probably going to be ultra obvious to anyone that has spent more time with bash than I have.</p>
<p>I'm trying to run this code:</p>
<pre><code>#!/bin/bash
if ["1" -eq "2"]
then
echo "True"
else
echo "False"
fi
</code></pre>
<p>but when I execute the file, it sends back </p>
<pre><code>./te... | 47,706 | 27,290 | 2013-04-02 23:50:08 | 4,468,835 | 11 | 2010-12-17 08:38:08 | 169,442 | 2010-12-17 08:38:08 | https://stackoverflow.com/q/4468824 | https://stackoverflow.com/a/4468835 | <p>yep eq is used only for arithmetic comparaisons. </p>
<p>for string comparison you have to use <code>=</code></p>
<pre><code>#!/bin/bash
if [ "1" = "2" ]
then
echo "True"
else
echo "False"
fi
</code></pre>
<p>plus you need some space around the brackets. </p>
| <p>yep eq is used only for arithmetic comparaisons. </p> <p>for string comparison you have to use <code>=</code></p> <pre><code>#!/bin/bash if [ "1" = "2" ] then echo "True" else echo "False" fi </code></pre> <p>plus you need some space around the brackets. </p> | 387 | bash | <h1>"Command not found" when attempting integer equality in bash</h1>
<p>Ok, this is probably going to be ultra obvious to anyone that has spent more time with bash than I have.</p>
<p>I'm trying to run this code:</p>
<pre><code>#!/bin/bash
if ["1" -eq "2"]
then
echo "True"
else
echo "False"
fi
</code></pre... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,211 | bash | # "Command not found" when attempting integer equality in bash
Ok, this is probably going to be ultra obvious to anyone that has spent more time with bash than I have.
I'm trying to run this code:
```
#!/bin/bash
if ["1" -eq "2"]
then
echo "True"
else
echo "False"
fi
```
but when I execute the file, it se... | yep eq is used only for arithmetic comparaisons.
for string comparison you have to use `=`
```
#!/bin/bash
if [ "1" = "2" ]
then
echo "True"
else
echo "False"
fi
```
plus you need some space around the brackets. |
3341482 | In a makefile, how to get the relative path from one absolute path to another? | 18 | 2010-07-27 07:25:36 | <p>An example to illustrate my question:</p>
<p>Top level makefile</p>
<pre><code>rootdir = $(realpath .)
export includedir = $(rootdir)/include
default:
@$(MAKE) --directory=$(rootdir)/src/libs/libfoo
</code></pre>
<p>Makefile for src/libfoo</p>
<pre><code>currentdir = $(realpath .)
includedir = $(function or ... | 45,194 | 331,024 | 2022-07-30 19:13:18 | 3,342,259 | 11 | 2010-07-27 09:29:15 | 212,063 | 2010-07-27 09:29:15 | https://stackoverflow.com/q/3341482 | https://stackoverflow.com/a/3342259 | <p>Doing what you want does not look easy. It may be possible using a lot of combined <code>$(if</code> in the makefile but not portable (gmake only) and cumbersome.</p>
<p>IMHO, you are trying to solve a problem that you create yourself. Why don't you send the correct value of <code>includedir</code> as a relative pa... | <p>Doing what you want does not look easy. It may be possible using a lot of combined <code>$(if</code> in the makefile but not portable (gmake only) and cumbersome.</p> <p>IMHO, you are trying to solve a problem that you create yourself. Why don't you send the correct value of <code>includedir</code> as a relative pa... | 18, 390, 4301, 6268 | makefile, path, regex, shell | <h1>In a makefile, how to get the relative path from one absolute path to another?</h1>
<p>An example to illustrate my question:</p>
<p>Top level makefile</p>
<pre><code>rootdir = $(realpath .)
export includedir = $(rootdir)/include
default:
@$(MAKE) --directory=$(rootdir)/src/libs/libfoo
</code></pre>
<p>Makefi... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,212 | bash | # In a makefile, how to get the relative path from one absolute path to another?
An example to illustrate my question:
Top level makefile
```
rootdir = $(realpath .)
export includedir = $(rootdir)/include
default:
@$(MAKE) --directory=$(rootdir)/src/libs/libfoo
```
Makefile for src/libfoo
```
currentdir = $(re... | Doing what you want does not look easy. It may be possible using a lot of combined `$(if` in the makefile but not portable (gmake only) and cumbersome.
IMHO, you are trying to solve a problem that you create yourself. Why don't you send the correct value of `includedir` as a relative path from the Top-level Makefile? ... |
63732583 | Warning about Breaking changes in the cmdlet 'Get-AzKeyVaultSecret' SecretValueText deprecated Az4.6.1 | 17 | 2020-09-03 22:43:11 | <p>I upgraded Az Powershell to 4.6.1 today and started seeing the below warning. The question I have is what I am supposed to do about this warning? I could mute the warning but that wouldn't help me prepare for this breaking change at all. I checked the Az 4.6.1 <a href="https://learn.microsoft.com/en-us/powershell/mo... | 11,171 | 3,577,083 | 2021-01-25 19:52:12 | 64,879,647 | 11 | 2020-11-17 16:50:19 | 14,656,459 | 2020-11-17 16:50:19 | https://stackoverflow.com/q/63732583 | https://stackoverflow.com/a/64879647 | <p>Microsoft documentation has now been updated
This example is taken from the latest <a href="https://learn.microsoft.com/en-us/powershell/module/az.keyvault/get-azkeyvaultsecret?view=azps-5.0.0&viewFallbackFrom=azps-4.6.1#example-5--get-the-plain-text-value-of-the-current-version-of-a-specific-secret" rel="norefe... | <p>Microsoft documentation has now been updated This example is taken from the latest <a href="https://learn.microsoft.com/en-us/powershell/module/az.keyvault/get-azkeyvaultsecret?view=azps-5.0.0&viewFallbackFrom=azps-4.6.1#example-5--get-the-plain-text-value-of-the-current-version-of-a-specific-secret" rel="norefe... | 14158, 81879 | azure, azure-powershell | <h1>Warning about Breaking changes in the cmdlet 'Get-AzKeyVaultSecret' SecretValueText deprecated Az4.6.1</h1>
<p>I upgraded Az Powershell to 4.6.1 today and started seeing the below warning. The question I have is what I am supposed to do about this warning? I could mute the warning but that wouldn't help me prepare ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,213 | bash | # Warning about Breaking changes in the cmdlet 'Get-AzKeyVaultSecret' SecretValueText deprecated Az4.6.1
I upgraded Az Powershell to 4.6.1 today and started seeing the below warning. The question I have is what I am supposed to do about this warning? I could mute the warning but that wouldn't help me prepare for this ... | Microsoft documentation has now been updated
This example is taken from the latest [docs](https://learn.microsoft.com/en-us/powershell/module/az.keyvault/get-azkeyvaultsecret?view=azps-5.0.0&viewFallbackFrom=azps-4.6.1#example-5--get-the-plain-text-value-of-the-current-version-of-a-specific-secret)
```
$secret = Get-A... |
54411218 | Docker why isn't $USER environment variable set | 17 | 2019-01-28 22:28:34 | <p>I'm doing a simple docker build where the image runs a script that assumes <code>$USER</code> is set, like it normally is in a bash shell.</p>
<p>However, <code>$USER</code> is not set, when using <code>/bin/bash</code> or <code>/bin/bash --login</code>. Very easy to demonstrate using the latest <code>ubuntu</code... | 18,104 | 659,866 | 2019-01-29 00:13:24 | 54,411,828 | 11 | 2019-01-28 23:34:08 | 10,008,173 | 2019-01-28 23:34:08 | https://stackoverflow.com/q/54411218 | https://stackoverflow.com/a/54411828 | <p><a href="https://docs.docker.com/engine/reference/run/#env-environment-variables" rel="noreferrer">The only environment variables documented to be set</a> are <code>$HOME</code>, <code>$HOSTNAME</code>, <code>$PATH</code>, and (maybe) <code>$TERM</code>. (A <code>docker build</code> <code>RUN</code> step internally... | <p><a href="https://docs.docker.com/engine/reference/run/#env-environment-variables" rel="noreferrer">The only environment variables documented to be set</a> are <code>$HOME</code>, <code>$HOSTNAME</code>, <code>$PATH</code>, and (maybe) <code>$TERM</code>. (A <code>docker build</code> <code>RUN</code> step internally... | 387, 549, 90304 | bash, docker, ubuntu | <h1>Docker why isn't $USER environment variable set</h1>
<p>I'm doing a simple docker build where the image runs a script that assumes <code>$USER</code> is set, like it normally is in a bash shell.</p>
<p>However, <code>$USER</code> is not set, when using <code>/bin/bash</code> or <code>/bin/bash --login</code>. Ver... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,214 | bash | # Docker why isn't $USER environment variable set
I'm doing a simple docker build where the image runs a script that assumes `$USER` is set, like it normally is in a bash shell.
However, `$USER` is not set, when using `/bin/bash` or `/bin/bash --login`. Very easy to demonstrate using the latest `ubuntu`
```
$ docker... | [The only environment variables documented to be set](https://docs.docker.com/engine/reference/run/#env-environment-variables) are `$HOME`, `$HOSTNAME`, `$PATH`, and (maybe) `$TERM`. (A `docker build` `RUN` step internally does the equivalent of `docker run`.) If you need other variables set you can use the `ENV` direc... |
44642227 | How do I resolve ffmpeg concat command error "unknown keyword..."? | 17 | 2017-06-20 01:10:17 | <p>I am trying to concatenate two video files using ffmpeg, and I am receiving an error.</p>
<p>To eliminate compatibility issues between the two videos, I have been concatenating the same video with itself, and the same error persists.</p>
<pre><code>ffmpeg \
-f concat \
-safe 0 \
-i intro_prepped.avi intro_prep... | 41,664 | 3,321,579 | 2023-12-06 08:28:28 | 44,687,573 | 11 | 2017-06-21 23:07:38 | 7,705,781 | 2022-02-22 00:13:43 | https://stackoverflow.com/q/44642227 | https://stackoverflow.com/a/44687573 | <p>Docs for several ways of concatenating files: <a href="https://trac.ffmpeg.org/wiki/Concatenate" rel="nofollow noreferrer">https://trac.ffmpeg.org/wiki/Concatenate</a></p>
<p>Here's a command I use to concatenate videos:</p>
<pre><code>ffmpeg \
-i "concat:input1.avi|input2.avi|input3.avi" \
-c:a copy \... | <p>Docs for several ways of concatenating files: <a href="https://trac.ffmpeg.org/wiki/Concatenate" rel="nofollow noreferrer">https://trac.ffmpeg.org/wiki/Concatenate</a></p> <p>Here's a command I use to concatenate videos:</p> <pre><code>ffmpeg \ -i "concat:input1.avi|input2.avi|input3.avi" \ -c:a copy \... | 390, 1231, 3847, 6050 | command-line, concatenation, ffmpeg, shell | <h1>How do I resolve ffmpeg concat command error "unknown keyword..."?</h1>
<p>I am trying to concatenate two video files using ffmpeg, and I am receiving an error.</p>
<p>To eliminate compatibility issues between the two videos, I have been concatenating the same video with itself, and the same error persists.</p>
<pr... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,215 | bash | # How do I resolve ffmpeg concat command error "unknown keyword..."?
I am trying to concatenate two video files using ffmpeg, and I am receiving an error.
To eliminate compatibility issues between the two videos, I have been concatenating the same video with itself, and the same error persists.
```
ffmpeg \
-f con... | Docs for several ways of concatenating files: <https://trac.ffmpeg.org/wiki/Concatenate>
Here's a command I use to concatenate videos:
```
ffmpeg \
-i "concat:input1.avi|input2.avi|input3.avi" \
-c:a copy \
-c:v copy \
output.avi
``` |
34901807 | What pattern does .gitignore follow? | 17 | 2016-01-20 13:47:19 | <p>Here is the content of my current directory.</p>
<pre><code>$ ls
foo.foo
$ ls -a
. .. .bar.foo .foo foo.foo .gitignore
</code></pre>
<p>Then I turn this directory into a git repository.</p>
<pre><code>$ git init
Initialized empty Git repository in /home/lone/foo/.git/
$ ls -a
. .. .bar.foo .foo foo.foo ... | 1,617 | 1,175,080 | 2016-01-29 09:00:18 | 34,960,504 | 11 | 2016-01-23 06:44:34 | 6,309 | 2016-01-29 09:00:18 | https://stackoverflow.com/q/34901807 | https://stackoverflow.com/a/34960504 | <p><code>gitignore</code> use of '<code>*</code>' follows the <a href="https://github.com/git/git/blob/3ee1e0fe11e2eb617170d0487fccfffc67f2b82b/Documentation/glossary-content.txt#L358-L383" rel="noreferrer">glob convention</a>:</p>
<blockquote>
<p>Git treats the pattern as a shell glob suitable for consumption by <stro... | <p><code>gitignore</code> use of '<code>*</code>' follows the <a href="https://github.com/git/git/blob/3ee1e0fe11e2eb617170d0487fccfffc67f2b82b/Documentation/glossary-content.txt#L358-L383" rel="noreferrer">glob convention</a>:</p> <blockquote> <p>Git treats the pattern as a shell glob suitable for consumption by <stro... | 119, 390, 3889 | git, glob, shell | <h1>What pattern does .gitignore follow?</h1>
<p>Here is the content of my current directory.</p>
<pre><code>$ ls
foo.foo
$ ls -a
. .. .bar.foo .foo foo.foo .gitignore
</code></pre>
<p>Then I turn this directory into a git repository.</p>
<pre><code>$ git init
Initialized empty Git repository in /home/lone/foo/... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,216 | bash | # What pattern does .gitignore follow?
Here is the content of my current directory.
```
$ ls
foo.foo
$ ls -a
. .. .bar.foo .foo foo.foo .gitignore
```
Then I turn this directory into a git repository.
```
$ git init
Initialized empty Git repository in /home/lone/foo/.git/
$ ls -a
. .. .bar.foo .foo foo.foo... | `gitignore` use of '`*`' follows the [glob convention](https://github.com/git/git/blob/3ee1e0fe11e2eb617170d0487fccfffc67f2b82b/Documentation/glossary-content.txt#L358-L383):
> Git treats the pattern as a shell glob suitable for consumption by **[`fnmatch`(3)](http://linux.die.net/man/3/fnmatch)** with the **[`FNM_PAT... |
32906767 | How to group Get-ChildItem -Recurse results in one output table? | 17 | 2015-10-02 12:02:40 | <p>I'm using the following Powershell command:</p>
<pre><code>Get-ChildItem -Recurse *.txt
</code></pre>
<p>But if there's multiple results the output will be like this:</p>
<pre class="lang-none prettyprint-override"><code> Directory: C:\TestFolder\myfolder\
Mode LastWriteTime Length Name
---- ... | 9,596 | 419,956 | 2017-09-09 11:17:05 | 32,907,515 | 11 | 2015-10-02 12:46:41 | 3,829,407 | 2015-10-02 13:14:35 | https://stackoverflow.com/q/32906767 | https://stackoverflow.com/a/32907515 | <p>PowerShell has its own way of displaying <code>System.IO.DirectoryInfo</code> and <code>System.IO.FileInfo</code> objects. If you don't want to see that then you just need to use <code>Select-Object</code>.</p>
<pre><code>Get-ChildItem -Recurse c:\temp | select Mode,LastWriteTime,Length,Directory,Name
</code></pre>... | <p>PowerShell has its own way of displaying <code>System.IO.DirectoryInfo</code> and <code>System.IO.FileInfo</code> objects. If you don't want to see that then you just need to use <code>Select-Object</code>.</p> <pre><code>Get-ChildItem -Recurse c:\temp | select Mode,LastWriteTime,Length,Directory,Name </code></pre>... | 526 | powershell | <h1>How to group Get-ChildItem -Recurse results in one output table?</h1>
<p>I'm using the following Powershell command:</p>
<pre><code>Get-ChildItem -Recurse *.txt
</code></pre>
<p>But if there's multiple results the output will be like this:</p>
<pre class="lang-none prettyprint-override"><code> Directory: C:... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,217 | bash | # How to group Get-ChildItem -Recurse results in one output table?
I'm using the following Powershell command:
```
Get-ChildItem -Recurse *.txt
```
But if there's multiple results the output will be like this:
```
Directory: C:\TestFolder\myfolder\
Mode LastWriteTime Length Name
---- ------... | PowerShell has its own way of displaying `System.IO.DirectoryInfo` and `System.IO.FileInfo` objects. If you don't want to see that then you just need to use `Select-Object`.
```
Get-ChildItem -Recurse c:\temp | select Mode,LastWriteTime,Length,Directory,Name
```
`Group-Object` is completely unnecessary. Given your ne... |
19536241 | Calling Excel macros from PowerShell with arguments | 17 | 2013-10-23 08:11:20 | <p>Using Powershell it's rather easy to call Excel macro's from a script, for example with a script like <a href="http://blogs.technet.com/b/heyscriptingguy/archive/2009/01/13/how-do-i-run-an-office-excel-macro-on-multiple-workbooks.aspx?Redirected=true" rel="noreferrer">this</a>:</p>
<pre><code>$excel = new-object -c... | 47,510 | 862,288 | 2016-05-24 21:14:24 | 19,537,999 | 11 | 2013-10-23 09:31:53 | 1,630,171 | 2013-10-23 09:31:53 | https://stackoverflow.com/q/19536241 | https://stackoverflow.com/a/19537999 | <p>You can run a macro with arguments like this:</p>
<pre><code>$excel.Run('CreateChart', 'arg1', 'arg2', ...)
</code></pre>
| <p>You can run a macro with arguments like this:</p> <pre><code>$excel.Run('CreateChart', 'arg1', 'arg2', ...) </code></pre> | 522, 526, 1449 | excel, powershell, vba | <h1>Calling Excel macros from PowerShell with arguments</h1>
<p>Using Powershell it's rather easy to call Excel macro's from a script, for example with a script like <a href="http://blogs.technet.com/b/heyscriptingguy/archive/2009/01/13/how-do-i-run-an-office-excel-macro-on-multiple-workbooks.aspx?Redirected=true" rel=... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,218 | bash | # Calling Excel macros from PowerShell with arguments
Using Powershell it's rather easy to call Excel macro's from a script, for example with a script like [this](http://blogs.technet.com/b/heyscriptingguy/archive/2009/01/13/how-do-i-run-an-office-excel-macro-on-multiple-workbooks.aspx?Redirected=true):
```
$excel = ... | You can run a macro with arguments like this:
```
$excel.Run('CreateChart', 'arg1', 'arg2', ...)
``` |
12413848 | what does $* mean in a shell script | 17 | 2012-09-13 19:57:21 | <p>What does <code>$*</code> exactly mean in a shell script?</p>
<p>For example consider the following code snippet</p>
<pre><code>$JAVA_HOME/bin/java/com/test/Testclass $*
</code></pre>
| 22,336 | 1,163,452 | 2016-05-12 02:42:24 | 12,413,891 | 11 | 2012-09-13 20:00:23 | 20,862 | 2012-09-13 20:00:23 | https://stackoverflow.com/q/12413848 | https://stackoverflow.com/a/12413891 | <p>It means all the arguments passed to the script or function, split by word.</p>
<p>It is usually wrong and should be replaced by <code>"$@"</code>, which separates the arguments properly.</p>
| <p>It means all the arguments passed to the script or function, split by word.</p> <p>It is usually wrong and should be replaced by <code>"$@"</code>, which separates the arguments properly.</p> | 34, 58, 387, 390, 12725 | bash, linux, shell, special-characters, unix | <h1>what does $* mean in a shell script</h1>
<p>What does <code>$*</code> exactly mean in a shell script?</p>
<p>For example consider the following code snippet</p>
<pre><code>$JAVA_HOME/bin/java/com/test/Testclass $*
</code></pre>
| q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,219 | bash | # what does $* mean in a shell script
What does `$*` exactly mean in a shell script?
For example consider the following code snippet
```
$JAVA_HOME/bin/java/com/test/Testclass $*
``` | It means all the arguments passed to the script or function, split by word.
It is usually wrong and should be replaced by `"$@"`, which separates the arguments properly. |
10062420 | Pass multi-word arguments to a bash function | 17 | 2012-04-08 11:21:27 | <p>Inside a bash script function, I need to work with the command-line arguments of the script, and also with another list of arguments. So I'm trying to pass two argument lists to a function, the problem is that multi-word arguments get split.</p>
<pre><code>function params()
{
for PARAM in $1; do
echo "$... | 22,154 | 1,088,790 | 2018-11-09 14:40:27 | 10,062,775 | 11 | 2012-04-08 12:25:40 | 313,821 | 2012-04-08 12:42:38 | https://stackoverflow.com/q/10062420 | https://stackoverflow.com/a/10062775 | <pre><code>function params()
{
arg=("$@")
for ((i=1;i<=$1;i++)) ;do
echo "${arg[i]}"
done
echo .
for ((;i<=$#-$1+2;i++)) ;do
echo "${arg[i]}"
done
}
items=(w x 'z t')
params $# "$@" "${items[@]}"
</code></pre>
<p>Assuming you call your script with args <code>a b 'c d'</code>, ... | <pre><code>function params() { arg=("$@") for ((i=1;i<=$1;i++)) ;do echo "${arg[i]}" done echo . for ((;i<=$#-$1+2;i++)) ;do echo "${arg[i]}" done } items=(w x 'z t') params $# "$@" "${items[@]}" </code></pre> <p>Assuming you call your script with args <code>a b 'c d'</code>, ... | 360, 387, 2193, 11402 | bash, cpu-word, parameters, split | <h1>Pass multi-word arguments to a bash function</h1>
<p>Inside a bash script function, I need to work with the command-line arguments of the script, and also with another list of arguments. So I'm trying to pass two argument lists to a function, the problem is that multi-word arguments get split.</p>
<pre><code>funct... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,220 | bash | # Pass multi-word arguments to a bash function
Inside a bash script function, I need to work with the command-line arguments of the script, and also with another list of arguments. So I'm trying to pass two argument lists to a function, the problem is that multi-word arguments get split.
```
function params()
{
f... | ```
function params()
{
arg=("$@")
for ((i=1;i<=$1;i++)) ;do
echo "${arg[i]}"
done
echo .
for ((;i<=$#-$1+2;i++)) ;do
echo "${arg[i]}"
done
}
items=(w x 'z t')
params $# "$@" "${items[@]}"
```
Assuming you call your script with args `a b 'c d'`, the output is:
```
a
b
c d
.
x
y
z t... |
2900707 | Lazy Evaluation in Bash | 17 | 2010-05-24 22:16:11 | <p>Is there more elegant way of doing lazy evaluation than the following:</p>
<pre>
pattern='$x and $y'
x=1
y=2
eval "echo $pattern"
</pre>
<p>results:</p>
<pre>
1 and 2
</pre>
<p>It works but <code>eval "echo ..."</code> just feels sloppy and may be insecure in some way. Is there a better way to do this in Bash?<... | 14,965 | 125,380 | 2024-10-28 04:32:16 | 2,959,276 | 11 | 2010-06-02 15:45:27 | 188,031 | 2019-12-12 18:20:48 | https://stackoverflow.com/q/2900707 | https://stackoverflow.com/a/2959276 | <p>You can use the command <a href="https://www.gnu.org/software/gettext/manual/html_node/envsubst-Invocation.html" rel="noreferrer">envsubst</a> from <a href="https://www.gnu.org/software/gettext/" rel="noreferrer">gettext</a>, for example:</p>
<pre><code>$ pattern='x=$x and y=$y'
$ x=1 y=2 envsubst <<< $pat... | <p>You can use the command <a href="https://www.gnu.org/software/gettext/manual/html_node/envsubst-Invocation.html" rel="noreferrer">envsubst</a> from <a href="https://www.gnu.org/software/gettext/" rel="noreferrer">gettext</a>, for example:</p> <pre><code>$ pattern='x=$x and y=$y' $ x=1 y=2 envsubst <<< $pat... | 387, 13918 | bash, lazy-evaluation | <h1>Lazy Evaluation in Bash</h1>
<p>Is there more elegant way of doing lazy evaluation than the following:</p>
<pre>
pattern='$x and $y'
x=1
y=2
eval "echo $pattern"
</pre>
<p>results:</p>
<pre>
1 and 2
</pre>
<p>It works but <code>eval "echo ..."</code> just feels sloppy and may be insecure in some way. Is there ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,221 | bash | # Lazy Evaluation in Bash
Is there more elegant way of doing lazy evaluation than the following:
```
pattern='$x and $y'
x=1
y=2
eval "echo $pattern"
```
results:
```
1 and 2
```
It works but `eval "echo ..."` just feels sloppy and may be insecure in some way. Is there a better way to do this in Bash? | You can use the command [envsubst](https://www.gnu.org/software/gettext/manual/html_node/envsubst-Invocation.html) from [gettext](https://www.gnu.org/software/gettext/), for example:
```
$ pattern='x=$x and y=$y'
$ x=1 y=2 envsubst <<< $pattern
x=1 and y=2
``` |
1461331 | Writing my own shell... stuck on pipes? | 17 | 2009-09-22 17:06:29 | <p>For the past few days I have been attempting to write my own shell implementation but I seem to have gotten stuck on getting pipes to work properly. I am able to parse a line and fork off the commands between the pipes (ex: ls | sort) individually but can't seem to get them to pipe input from one into the other.</p... | 20,923 | 14,013 | 2015-01-09 15:52:33 | 1,469,750 | 11 | 2009-09-24 04:17:14 | 25,507 | 2009-09-24 04:17:14 | https://stackoverflow.com/q/1461331 | https://stackoverflow.com/a/1469750 | <p>First suggestion: Symbolic constants are better than magic numbers.</p>
<pre><code>const int PIPE_READ = 0;
const int PIPE_WRITE = 1;
int fd[2];
pipe(fd);
// Now you can refer to fd[PIPE_READ] and fd[PIPE_WRITE].
</code></pre>
<p>Second suggestion: Take a step back and think about what you're trying to accomplis... | <p>First suggestion: Symbolic constants are better than magic numbers.</p> <pre><code>const int PIPE_READ = 0; const int PIPE_WRITE = 1; int fd[2]; pipe(fd); // Now you can refer to fd[PIPE_READ] and fd[PIPE_WRITE]. </code></pre> <p>Second suggestion: Take a step back and think about what you're trying to accomplis... | 10, 34, 390, 5813 | c++, pipe, shell, unix | <h1>Writing my own shell... stuck on pipes?</h1>
<p>For the past few days I have been attempting to write my own shell implementation but I seem to have gotten stuck on getting pipes to work properly. I am able to parse a line and fork off the commands between the pipes (ex: ls | sort) individually but can't seem to g... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,222 | bash | # Writing my own shell... stuck on pipes?
For the past few days I have been attempting to write my own shell implementation but I seem to have gotten stuck on getting pipes to work properly. I am able to parse a line and fork off the commands between the pipes (ex: ls | sort) individually but can't seem to get them to... | First suggestion: Symbolic constants are better than magic numbers.
```
const int PIPE_READ = 0;
const int PIPE_WRITE = 1;
int fd[2];
pipe(fd);
// Now you can refer to fd[PIPE_READ] and fd[PIPE_WRITE].
```
Second suggestion: Take a step back and think about what you're trying to accomplish.
You want to spawn two pro... |
49594391 | Aws Ec2 run script program at startup | 16 | 2018-04-01 03:01:55 | <p>There is a method to setup an EC2 machine to execute Kafka starting script on startup?
I use also java Aws SDK, so I accept both solution for a program java that run command on EC2 instance and solutions for a bash script mode that run kafka script at startup.</p>
| 60,757 | 7,809,340 | 2022-03-15 12:48:11 | 49,594,897 | 11 | 2018-04-01 04:45:48 | 174,777 | 2018-04-01 04:45:48 | https://stackoverflow.com/q/49594391 | https://stackoverflow.com/a/49594897 | <p>A script can be passed in the <strong>User Data</strong> property.</p>
<p>If you are using the Amazon Linux AMI, and the first line of the script begins with <code>#!</code>, then the script will be executed <strong>the first time that the instance is started</strong>.</p>
<p>For details, see: <a href="https://doc... | <p>A script can be passed in the <strong>User Data</strong> property.</p> <p>If you are using the Amazon Linux AMI, and the first line of the script begins with <code>#!</code>, then the script will be executed <strong>the first time that the instance is started</strong>.</p> <p>For details, see: <a href="https://doc... | 387, 7457, 12375, 33388 | amazon-ec2, amazon-web-services, bash, startup | <h1>Aws Ec2 run script program at startup</h1>
<p>There is a method to setup an EC2 machine to execute Kafka starting script on startup?
I use also java Aws SDK, so I accept both solution for a program java that run command on EC2 instance and solutions for a bash script mode that run kafka script at startup.</p>
| q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,223 | bash | # Aws Ec2 run script program at startup
There is a method to setup an EC2 machine to execute Kafka starting script on startup?
I use also java Aws SDK, so I accept both solution for a program java that run command on EC2 instance and solutions for a bash script mode that run kafka script at startup. | A script can be passed in the **User Data** property.
If you are using the Amazon Linux AMI, and the first line of the script begins with `#!`, then the script will be executed **the first time that the instance is started**.
For details, see: [Running Commands on Your Linux Instance at Launch](https://docs.aws.amazo... |
42218009 | How to tell if any command in bash script failed (non-zero exit status) | 16 | 2017-02-14 04:42:58 | <p>I want to know whether any commands in a bash script exited with a non-zero status.</p>
<p>I want something similar to <code>set -e</code> functionality, except that I don't want it to exit when a command exits with a non-zero status. I want it to run the whole script, and then I want to know that either:</p>
<p>... | 9,778 | 875,915 | 2022-11-10 18:01:41 | 42,219,754 | 11 | 2017-02-14 06:57:06 | 140,750 | 2022-11-10 18:01:41 | https://stackoverflow.com/q/42218009 | https://stackoverflow.com/a/42219754 | <p>Set a trap on ERR:</p>
<pre><code>#!/bin/bash
err=0
trap 'err=1' ERR
command1
command2
command3
test $err = 0 # Return non-zero if any command failed
</code></pre>
<p>You might even throw in a little introspection to get data about where the error occurred:</p>
<pre><code>#!/bin/bash
for i in 1 2 3; do
eva... | <p>Set a trap on ERR:</p> <pre><code>#!/bin/bash err=0 trap 'err=1' ERR command1 command2 command3 test $err = 0 # Return non-zero if any command failed </code></pre> <p>You might even throw in a little introspection to get data about where the error occurred:</p> <pre><code>#!/bin/bash for i in 1 2 3; do eva... | 387, 10021, 10327, 54576 | bash, exit-code, exitstatus, sh | <h1>How to tell if any command in bash script failed (non-zero exit status)</h1>
<p>I want to know whether any commands in a bash script exited with a non-zero status.</p>
<p>I want something similar to <code>set -e</code> functionality, except that I don't want it to exit when a command exits with a non-zero status. ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,224 | bash | # How to tell if any command in bash script failed (non-zero exit status)
I want to know whether any commands in a bash script exited with a non-zero status.
I want something similar to `set -e` functionality, except that I don't want it to exit when a command exits with a non-zero status. I want it to run the whole ... | Set a trap on ERR:
```
#!/bin/bash
err=0
trap 'err=1' ERR
command1
command2
command3
test $err = 0 # Return non-zero if any command failed
```
You might even throw in a little introspection to get data about where the error occurred:
```
#!/bin/bash
for i in 1 2 3; do
eval "command$i() { echo command$i; te... |
37567596 | How do you check to see if Hyper-V is enabled using PowerShell? | 16 | 2016-06-01 11:40:14 | <p>I am trying to write a PowerShell script that checks the Windows Optional Features to see if Hyper-V is installed. However, my code is not working. Even when Hyper-V is disabled, the script outputs that it is already enabled.</p>
<pre><code>#Requires -RunAsAdministrator
# Get the Hyper-V feature and store it in $h... | 55,031 | 6,409,103 | 2022-08-10 04:45:16 | 37,567,812 | 11 | 2016-06-01 11:49:45 | 978,511 | 2016-06-01 11:49:45 | https://stackoverflow.com/q/37567596 | https://stackoverflow.com/a/37567812 | <p>I believe it has to do with your <code>if</code> condition, try this:</p>
<pre><code>if($hyperv.State -eq "Enabled")
</code></pre>
<p>The <code>=</code> sign is not going to work, you need to do it PowerShell way</p>
| <p>I believe it has to do with your <code>if</code> condition, try this:</p> <pre><code>if($hyperv.State -eq "Enabled") </code></pre> <p>The <code>=</code> sign is not going to work, you need to do it PowerShell way</p> | 64, 526, 3055 | hyper-v, powershell, windows | <h1>How do you check to see if Hyper-V is enabled using PowerShell?</h1>
<p>I am trying to write a PowerShell script that checks the Windows Optional Features to see if Hyper-V is installed. However, my code is not working. Even when Hyper-V is disabled, the script outputs that it is already enabled.</p>
<pre><code>#R... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,225 | bash | # How do you check to see if Hyper-V is enabled using PowerShell?
I am trying to write a PowerShell script that checks the Windows Optional Features to see if Hyper-V is installed. However, my code is not working. Even when Hyper-V is disabled, the script outputs that it is already enabled.
```
#Requires -RunAsAdmini... | I believe it has to do with your `if` condition, try this:
```
if($hyperv.State -eq "Enabled")
```
The `=` sign is not going to work, you need to do it PowerShell way |
36746272 | powershell extract text between two strings | 16 | 2016-04-20 14:03:09 | <p>I know this question has been asked before but I can't get any of the answers I have looked at to work. I have a JSON file which has thousands of lines and want to simply extract the text between two strings every time they appear (which is a lot).</p>
<p>As a simple example my JSON would look like this:</p>
<pre>... | 75,888 | 5,296,090 | 2022-11-16 15:51:59 | 36,746,933 | 11 | 2016-04-20 14:26:24 | 2,064,981 | 2016-04-20 14:26:24 | https://stackoverflow.com/q/36746272 | https://stackoverflow.com/a/36746933 | <p>The quick answer is - change your greedy capture <code>(.*)</code> to non greedy - <code>(.*?)</code>. That should do it.</p>
<pre><code>customfield_11301(.*?)customfield_10730
</code></pre>
<p>Otherwise the capture will eat as much as it can, resulting in it continuing 'til the last <code>customfield_10730</code>... | <p>The quick answer is - change your greedy capture <code>(.*)</code> to non greedy - <code>(.*?)</code>. That should do it.</p> <pre><code>customfield_11301(.*?)customfield_10730 </code></pre> <p>Otherwise the capture will eat as much as it can, resulting in it continuing 'til the last <code>customfield_10730</code>... | 18, 526 | powershell, regex | <h1>powershell extract text between two strings</h1>
<p>I know this question has been asked before but I can't get any of the answers I have looked at to work. I have a JSON file which has thousands of lines and want to simply extract the text between two strings every time they appear (which is a lot).</p>
<p>As a si... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,226 | bash | # powershell extract text between two strings
I know this question has been asked before but I can't get any of the answers I have looked at to work. I have a JSON file which has thousands of lines and want to simply extract the text between two strings every time they appear (which is a lot).
As a simple example my ... | The quick answer is - change your greedy capture `(.*)` to non greedy - `(.*?)`. That should do it.
```
customfield_11301(.*?)customfield_10730
```
Otherwise the capture will eat as much as it can, resulting in it continuing 'til the last `customfield_10730`.
Regards |
33961229 | How to source additional file when launching bash | 16 | 2015-11-27 16:12:12 | <p>Bash will source automatic profiles such as <code>.bashrc</code>. <code>--rcfile</code> option can be used to override the automatic script. But I need to source <em>additional</em> personalized file (that's the automatic script plus another file) when launching the bash shell <strong>without touching ANY files in <... | 13,669 | 2,175,604 | 2025-12-15 13:58:28 | 33,961,855 | 11 | 2015-11-27 16:55:10 | 675,568 | 2015-11-27 16:55:10 | https://stackoverflow.com/q/33961229 | https://stackoverflow.com/a/33961855 | <p>Okay, so you want to run the user's normal <code>.bashrc</code>, followed by your own script, and you want to trigger this behavior in the way that <code>bash</code> is called, correct?</p>
<p>The call:</p>
<pre><code>/bin/bash --rcfile myscript
</code></pre>
<p>First line of <code>myscript</code>:</p>
<pre><cod... | <p>Okay, so you want to run the user's normal <code>.bashrc</code>, followed by your own script, and you want to trigger this behavior in the way that <code>bash</code> is called, correct?</p> <p>The call:</p> <pre><code>/bin/bash --rcfile myscript </code></pre> <p>First line of <code>myscript</code>:</p> <pre><cod... | 387 | bash | <h1>How to source additional file when launching bash</h1>
<p>Bash will source automatic profiles such as <code>.bashrc</code>. <code>--rcfile</code> option can be used to override the automatic script. But I need to source <em>additional</em> personalized file (that's the automatic script plus another file) when launc... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,227 | bash | # How to source additional file when launching bash
Bash will source automatic profiles such as `.bashrc`. `--rcfile` option can be used to override the automatic script. But I need to source *additional* personalized file (that's the automatic script plus another file) when launching the bash shell **without touching... | Okay, so you want to run the user's normal `.bashrc`, followed by your own script, and you want to trigger this behavior in the way that `bash` is called, correct?
The call:
```
/bin/bash --rcfile myscript
```
First line of `myscript`:
```
source $HOME/.bashrc
``` |
22783099 | Unknown command: shell_plus and --settings | 16 | 2014-04-01 10:24:55 | <p>I try to run some</p>
<pre><code>python manage.py shell_plus --notebook --settings=my_app.settings.andi
</code></pre>
<p>But it fails with error:</p>
<pre><code>Unknown command: 'shell_plus'
Type 'manage.py help' for usage.
</code></pre>
<p>I have ipython and shell_plus installed (from my pip freeze)</p>
<pre><... | 17,960 | 953,553 | 2019-05-27 01:39:17 | 22,783,238 | 11 | 2014-04-01 10:30:54 | 870,505 | 2014-04-01 10:37:02 | https://stackoverflow.com/q/22783099 | https://stackoverflow.com/a/22783238 | <p>According to <a href="https://bitbucket.org/schinckel/django-shell/" rel="noreferrer">documentation</a>, you need to call it as <code>./manage.py shell+</code>.</p>
<p>Probably you've mixed up this command with <a href="https://github.com/django-extensions/django-extensions/blob/master/docs/shell_plus.rst" rel="nor... | <p>According to <a href="https://bitbucket.org/schinckel/django-shell/" rel="noreferrer">documentation</a>, you need to call it as <code>./manage.py shell+</code>.</p> <p>Probably you've mixed up this command with <a href="https://github.com/django-extensions/django-extensions/blob/master/docs/shell_plus.rst" rel="nor... | 16, 243, 55804 | django, django-shell, python | <h1>Unknown command: shell_plus and --settings</h1>
<p>I try to run some</p>
<pre><code>python manage.py shell_plus --notebook --settings=my_app.settings.andi
</code></pre>
<p>But it fails with error:</p>
<pre><code>Unknown command: 'shell_plus'
Type 'manage.py help' for usage.
</code></pre>
<p>I have ipython and s... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,228 | bash | # Unknown command: shell_plus and --settings
I try to run some
```
python manage.py shell_plus --notebook --settings=my_app.settings.andi
```
But it fails with error:
```
Unknown command: 'shell_plus'
Type 'manage.py help' for usage.
```
I have ipython and shell_plus installed (from my pip freeze)
```
django-shel... | According to [documentation](https://bitbucket.org/schinckel/django-shell/), you need to call it as `./manage.py shell+`.
Probably you've mixed up this command with [`shell_plus`](https://github.com/django-extensions/django-extensions/blob/master/docs/shell_plus.rst) from [`django-extensions`](https://github.com/djang... |
20147878 | How to sort,uniq and display line that appear more than X times | 16 | 2013-11-22 14:58:08 | <p>I have a file like this:</p>
<pre><code>80.13.178.2
80.13.178.2
80.13.178.2
80.13.178.2
80.13.178.1
80.13.178.3
80.13.178.3
80.13.178.3
80.13.178.4
80.13.178.4
80.13.178.7
</code></pre>
<p>I need to display unique entries for repeated line (similar to uniq -d) but only entries that occur <em>more</em> than just tw... | 12,412 | 3,022,172 | 2013-11-22 17:17:58 | 20,147,970 | 11 | 2013-11-22 15:03:03 | 171,318 | 2013-11-22 15:03:03 | https://stackoverflow.com/q/20147878 | https://stackoverflow.com/a/20147970 | <p>With pure <code>awk</code>:</p>
<pre><code>awk '{a[$0]++}END{for(i in a){if(a[i] > 2){print i}}}' a.txt
</code></pre>
<p>It iterates over the file and counts the occurances of every IP. At the end of the file it outputs every IP which occurs more than 2 times.</p>
| <p>With pure <code>awk</code>:</p> <pre><code>awk '{a[$0]++}END{for(i in a){if(a[i] > 2){print i}}}' a.txt </code></pre> <p>It iterates over the file and counts the occurances of every IP. At the end of the file it outputs every IP which occurs more than 2 times.</p> | 134, 387, 35617 | bash, sorting, uniq | <h1>How to sort,uniq and display line that appear more than X times</h1>
<p>I have a file like this:</p>
<pre><code>80.13.178.2
80.13.178.2
80.13.178.2
80.13.178.2
80.13.178.1
80.13.178.3
80.13.178.3
80.13.178.3
80.13.178.4
80.13.178.4
80.13.178.7
</code></pre>
<p>I need to display unique entries for repeated line (s... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,229 | bash | # How to sort,uniq and display line that appear more than X times
I have a file like this:
```
80.13.178.2
80.13.178.2
80.13.178.2
80.13.178.2
80.13.178.1
80.13.178.3
80.13.178.3
80.13.178.3
80.13.178.4
80.13.178.4
80.13.178.7
```
I need to display unique entries for repeated line (similar to uniq -d) but only entri... | With pure `awk`:
```
awk '{a[$0]++}END{for(i in a){if(a[i] > 2){print i}}}' a.txt
```
It iterates over the file and counts the occurances of every IP. At the end of the file it outputs every IP which occurs more than 2 times. |
15430877 | bash: xargs passing variable | 16 | 2013-03-15 11:11:09 | <p>How can a global script variable be passed to the command of xargs? I tried it this way:</p>
<pre><code>TEST=hallo2
echo "hallo" | xargs sh -c 'echo passed=$1 test=$TEST' sh
</code></pre>
<p>Output:</p>
<pre><code>passed=hallo test=
</code></pre>
<p>I know I could use the <code>{}</code> token but I need to do i... | 47,391 | 1,110,642 | 2018-11-29 18:10:28 | 15,431,066 | 11 | 2013-03-15 11:20:16 | 1,386,359 | 2013-03-15 12:23:08 | https://stackoverflow.com/q/15430877 | https://stackoverflow.com/a/15431066 | <p>Take variable <code>$TEST</code> out from the quotes:</p>
<pre><code> TEST=hallo2
echo "hallo" | xargs sh -c 'echo passed=$1 test='$TEST sh
</code></pre>
| <p>Take variable <code>$TEST</code> out from the quotes:</p> <pre><code> TEST=hallo2 echo "hallo" | xargs sh -c 'echo passed=$1 test='$TEST sh </code></pre> | 58, 276, 387, 10326 | bash, linux, variables, xargs | <h1>bash: xargs passing variable</h1>
<p>How can a global script variable be passed to the command of xargs? I tried it this way:</p>
<pre><code>TEST=hallo2
echo "hallo" | xargs sh -c 'echo passed=$1 test=$TEST' sh
</code></pre>
<p>Output:</p>
<pre><code>passed=hallo test=
</code></pre>
<p>I know I could use the <c... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,230 | bash | # bash: xargs passing variable
How can a global script variable be passed to the command of xargs? I tried it this way:
```
TEST=hallo2
echo "hallo" | xargs sh -c 'echo passed=$1 test=$TEST' sh
```
Output:
```
passed=hallo test=
```
I know I could use the `{}` token but I need to do it this way!
I'm using `bash`. | Take variable `$TEST` out from the quotes:
```
TEST=hallo2
echo "hallo" | xargs sh -c 'echo passed=$1 test='$TEST sh
``` |
10679188 | Casing arrow keys in bash | 16 | 2012-05-21 03:25:31 | <p>Is it possible to case arrow keys in a bash script to run a certain set of commands if the up/left arrow keys are pressed, and a certain set if the down/right arrow keys are pressed? I am trying to have a way to switch between users quickly by using the arrow keys while it is displaying the data, using this script t... | 34,147 | 772,202 | 2022-10-28 03:44:20 | 10,680,015 | 11 | 2012-05-21 05:44:59 | 26,428 | 2012-05-21 05:44:59 | https://stackoverflow.com/q/10679188 | https://stackoverflow.com/a/10680015 | <p>You can use <code>read -n 1</code> to read one character then use a <code>case</code> statement to choose an action to take based on the key.</p>
<p>On problem is that arrow keys output more than one character and the sequence (and its length) varies from terminal to terminal.</p>
<p>For example, on the terminal I... | <p>You can use <code>read -n 1</code> to read one character then use a <code>case</code> statement to choose an action to take based on the key.</p> <p>On problem is that arrow keys output more than one character and the sequence (and its length) varies from terminal to terminal.</p> <p>For example, on the terminal I... | 387 | bash | <h1>Casing arrow keys in bash</h1>
<p>Is it possible to case arrow keys in a bash script to run a certain set of commands if the up/left arrow keys are pressed, and a certain set if the down/right arrow keys are pressed? I am trying to have a way to switch between users quickly by using the arrow keys while it is displ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,231 | bash | # Casing arrow keys in bash
Is it possible to case arrow keys in a bash script to run a certain set of commands if the up/left arrow keys are pressed, and a certain set if the down/right arrow keys are pressed? I am trying to have a way to switch between users quickly by using the arrow keys while it is displaying the... | You can use `read -n 1` to read one character then use a `case` statement to choose an action to take based on the key.
On problem is that arrow keys output more than one character and the sequence (and its length) varies from terminal to terminal.
For example, on the terminal I'm using, the right arrow outputs `^[[C... |
9600549 | Using a caret(^) when using Git for Windows in PowerShell | 16 | 2012-03-07 11:24:58 | <p>I'm using git at the command line with PowerShell, and I'm trying to use something like</p>
<pre><code>git difftool HEAD^
</code></pre>
<p>Powershell seems to treat this as if I typed</p>
<pre><code>git difftool HEAD
</code></pre>
<p>so the caret symbol is gone. If I use multiple copies of the caret, I get a wei... | 4,701 | 203,723 | 2012-03-08 10:14:04 | 9,615,922 | 11 | 2012-03-08 10:12:37 | 203,723 | 2012-03-08 10:12:37 | https://stackoverflow.com/q/9600549 | https://stackoverflow.com/a/9615922 | <p>I found the problem, and it was with my setup :(</p>
<p>I'm using Git for Windows, which provides <code>git.exe</code> in a /bin folder and <code>git.cmd</code> in a /cmd folder. <code>git.cmd</code> is a batch script which wraps <code>git.exe</code> and does some other stuff.</p>
<p>Both of these directories were... | <p>I found the problem, and it was with my setup :(</p> <p>I'm using Git for Windows, which provides <code>git.exe</code> in a /bin folder and <code>git.cmd</code> in a /cmd folder. <code>git.cmd</code> is a batch script which wraps <code>git.exe</code> and does some other stuff.</p> <p>Both of these directories were... | 64, 119, 526 | git, powershell, windows | <h1>Using a caret(^) when using Git for Windows in PowerShell</h1>
<p>I'm using git at the command line with PowerShell, and I'm trying to use something like</p>
<pre><code>git difftool HEAD^
</code></pre>
<p>Powershell seems to treat this as if I typed</p>
<pre><code>git difftool HEAD
</code></pre>
<p>so the caret... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,232 | bash | # Using a caret(^) when using Git for Windows in PowerShell
I'm using git at the command line with PowerShell, and I'm trying to use something like
```
git difftool HEAD^
```
Powershell seems to treat this as if I typed
```
git difftool HEAD
```
so the caret symbol is gone. If I use multiple copies of the caret, I... | I found the problem, and it was with my setup :(
I'm using Git for Windows, which provides `git.exe` in a /bin folder and `git.cmd` in a /cmd folder. `git.cmd` is a batch script which wraps `git.exe` and does some other stuff.
Both of these directories were in my PATH, with /cmd coming first, so when I typed `git`, `... |
6216007 | Graphical debugger for bash | 16 | 2011-06-02 14:36:57 | <p>Is it there any graphical debugger for bash on mac os x or linux? I mean something in the same fashion that the debugging mode of Visual Studio or Eclipse, where one can stop the program hover the mouse pointer over variables and get instantly values, modify them and go backwards and try modifications without the ne... | 10,788 | 171,546 | 2018-02-15 16:40:39 | 6,216,213 | 11 | 2011-06-02 14:53:19 | 490,400 | 2011-06-02 14:58:20 | https://stackoverflow.com/q/6216007 | https://stackoverflow.com/a/6216213 | <p>for debugging execute your script with: </p>
<pre><code>bash -x <scriptname>
</code></pre>
<p>gui debugger:
<a href="http://bashdb.sourceforge.net/">http://bashdb.sourceforge.net/</a></p>
| <p>for debugging execute your script with: </p> <pre><code>bash -x <scriptname> </code></pre> <p>gui debugger: <a href="http://bashdb.sourceforge.net/">http://bashdb.sourceforge.net/</a></p> | 110, 277, 369, 387 | bash, debugging, ide, macos | <h1>Graphical debugger for bash</h1>
<p>Is it there any graphical debugger for bash on mac os x or linux? I mean something in the same fashion that the debugging mode of Visual Studio or Eclipse, where one can stop the program hover the mouse pointer over variables and get instantly values, modify them and go backwards... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,233 | bash | # Graphical debugger for bash
Is it there any graphical debugger for bash on mac os x or linux? I mean something in the same fashion that the debugging mode of Visual Studio or Eclipse, where one can stop the program hover the mouse pointer over variables and get instantly values, modify them and go backwards and try ... | for debugging execute your script with:
```
bash -x <scriptname>
```
gui debugger:
<http://bashdb.sourceforge.net/> |
194725 | How can I make the "find" Command on OS X default to the current directory? | 16 | 2008-10-11 22:10:24 | <p>I am a heavy command line user and use the <code>find</code> command extensively in my build system scripts. However on Mac OS X when I am not concentrating I often get output like this:</p>
<pre><code>$ find -name \*.plist
find: illegal option -- n
find: illegal option -- a
find: illegal option -- m
find: illegal ... | 17,004 | 6,444 | 2019-01-18 02:58:58 | 194,883 | 11 | 2008-10-12 00:14:57 | 15,168 | 2008-10-12 00:21:18 | https://stackoverflow.com/q/194725 | https://stackoverflow.com/a/194883 | <p>If you can't discipline yourself to use <code>find</code> 'correctly', then why not install GNU <code>find</code> (from <code>findutils</code>) in a directory on your PATH ahead of the system <code>find</code> command.</p>
<p>I used to have my own private variant of <code>cp</code> that would copy files to the curr... | <p>If you can't discipline yourself to use <code>find</code> 'correctly', then why not install GNU <code>find</code> (from <code>findutils</code>) in a directory on your PATH ahead of the system <code>find</code> command.</p> <p>I used to have my own private variant of <code>cp</code> that would copy files to the curr... | 369, 387, 1231, 10193 | bash, command-line, find, macos | <h1>How can I make the "find" Command on OS X default to the current directory?</h1>
<p>I am a heavy command line user and use the <code>find</code> command extensively in my build system scripts. However on Mac OS X when I am not concentrating I often get output like this:</p>
<pre><code>$ find -name \*.plist
find: i... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,234 | bash | # How can I make the "find" Command on OS X default to the current directory?
I am a heavy command line user and use the `find` command extensively in my build system scripts. However on Mac OS X when I am not concentrating I often get output like this:
```
$ find -name \*.plist
find: illegal option -- n
find: illega... | If you can't discipline yourself to use `find` 'correctly', then why not install GNU `find` (from `findutils`) in a directory on your PATH ahead of the system `find` command.
I used to have my own private variant of `cp` that would copy files to the current directory if the last item in the list was not a directory. I... |
60104778 | Change and update the size of the cursor in Windows 10 via PowerShell | 15 | 2020-02-06 22:55:23 | <p>I've written the code below to affect (what I think) are the only reg keys responsible for the size of the cursor and pointer in Windows 10.</p>
<p>Here's the code I have so far (Some additional comments within):</p>
<pre><code>$RegConnect = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey([Microsoft.... | 10,045 | 8,262,102 | 2022-02-22 16:10:53 | 69,687,213 | 11 | 2021-10-23 10:24:55 | 5,988,940 | 2021-10-23 10:24:55 | https://stackoverflow.com/q/60104778 | https://stackoverflow.com/a/69687213 | <p>So after a bit of hacking about SystemSettings.exe with cheat engine I found how MS sets the cursor size. It ends up still using SystemParametersInfo but with some undocumented arguments. Try the following :)</p>
<pre><code>SystemParametersInfo(0x2029, 0, 16, 0x01);
</code></pre>
<p>to set a cursor size of 16. yup y... | <p>So after a bit of hacking about SystemSettings.exe with cheat engine I found how MS sets the cursor size. It ends up still using SystemParametersInfo but with some undocumented arguments. Try the following :)</p> <pre><code>SystemParametersInfo(0x2029, 0, 16, 0x01); </code></pre> <p>to set a cursor size of 16. yup y... | 526, 889 | powershell, winapi | <h1>Change and update the size of the cursor in Windows 10 via PowerShell</h1>
<p>I've written the code below to affect (what I think) are the only reg keys responsible for the size of the cursor and pointer in Windows 10.</p>
<p>Here's the code I have so far (Some additional comments within):</p>
<pre><code>$RegCon... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,235 | bash | # Change and update the size of the cursor in Windows 10 via PowerShell
I've written the code below to affect (what I think) are the only reg keys responsible for the size of the cursor and pointer in Windows 10.
Here's the code I have so far (Some additional comments within):
```
$RegConnect = [Microsof... | So after a bit of hacking about SystemSettings.exe with cheat engine I found how MS sets the cursor size. It ends up still using SystemParametersInfo but with some undocumented arguments. Try the following :)
```
SystemParametersInfo(0x2029, 0, 16, 0x01);
```
to set a cursor size of 16. yup you can go below their min... |
33225082 | Relative shebang: How to write an executable script running portable interpreter which comes with it | 15 | 2015-10-19 22:35:34 | <p>Let's say we have a program/package which comes along with its own interpreter and a set of scripts which should invoke it on their execution (using shebang).</p>
<p>And let's say we want to keep it portable, so it remains functioning even if simply copied to a different location (different machines) without invoki... | 7,365 | 2,527,797 | 2025-02-26 09:43:54 | 33,225,083 | 11 | 2015-10-19 22:35:34 | 2,527,797 | 2025-02-26 09:43:54 | https://stackoverflow.com/q/33225082 | https://stackoverflow.com/a/33225083 | <p>The relative path written directly in a shebang is treated relative to the current working directory, so something like <code>#!../bin/python2.7</code> will not work for any other working directory except few.</p>
<p>Since OS does not support it, why not to use external program like using <code>env</code> for <code>... | <p>The relative path written directly in a shebang is treated relative to the current working directory, so something like <code>#!../bin/python2.7</code> will not work for any other working directory except few.</p> <p>Since OS does not support it, why not to use external program like using <code>env</code> for <code>... | 16, 34, 58, 390, 8780 | linux, python, shebang, shell, unix | <h1>Relative shebang: How to write an executable script running portable interpreter which comes with it</h1>
<p>Let's say we have a program/package which comes along with its own interpreter and a set of scripts which should invoke it on their execution (using shebang).</p>
<p>And let's say we want to keep it portabl... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,236 | bash | # Relative shebang: How to write an executable script running portable interpreter which comes with it
Let's say we have a program/package which comes along with its own interpreter and a set of scripts which should invoke it on their execution (using shebang).
And let's say we want to keep it portable, so it remains... | The relative path written directly in a shebang is treated relative to the current working directory, so something like `#!../bin/python2.7` will not work for any other working directory except few.
Since OS does not support it, why not to use external program like using `env` for `PATH` lookup. But I know no speciali... |
27658147 | Download private file from S3 using bash | 15 | 2014-12-26 14:03:24 | <p>I am trying to get the following bash script to work (copied from <a href="http://curl.haxx.se/mail/archive-2014-10/0006.html#replies" rel="noreferrer">http://curl.haxx.se/mail/archive-2014-10/0006.html#replies</a>): </p>
<pre><code>#!/bin/sh
file=path/to/file
bucket=your-bucket
resource="/${bucket}/${file}"
co... | 19,603 | 2,271,675 | 2017-04-27 09:30:34 | 27,677,146 | 11 | 2014-12-28 14:06:39 | 2,271,675 | 2014-12-28 14:06:39 | https://stackoverflow.com/q/27658147 | https://stackoverflow.com/a/27677146 | <p>After way too much time spent on this I finally got it to work:</p>
<p>This line:</p>
<pre><code>signature=`/bin/echo -n "$stringToSign" | openssl sha1 -hmac ${s3Secret} -binary | base64`
</code></pre>
<p>is missing an 'e':</p>
<pre><code>signature=`/bin/echo -en "$stringToSign" | openssl sha1 -hmac ${s3Secret} ... | <p>After way too much time spent on this I finally got it to work:</p> <p>This line:</p> <pre><code>signature=`/bin/echo -n "$stringToSign" | openssl sha1 -hmac ${s3Secret} -binary | base64` </code></pre> <p>is missing an 'e':</p> <pre><code>signature=`/bin/echo -en "$stringToSign" | openssl sha1 -hmac ${s3Secret} ... | 387, 531, 11444 | amazon-s3, bash, scripting | <h1>Download private file from S3 using bash</h1>
<p>I am trying to get the following bash script to work (copied from <a href="http://curl.haxx.se/mail/archive-2014-10/0006.html#replies" rel="noreferrer">http://curl.haxx.se/mail/archive-2014-10/0006.html#replies</a>): </p>
<pre><code>#!/bin/sh
file=path/to/file
buc... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,237 | bash | # Download private file from S3 using bash
I am trying to get the following bash script to work (copied from <http://curl.haxx.se/mail/archive-2014-10/0006.html#replies>):
```
#!/bin/sh
file=path/to/file
bucket=your-bucket
resource="/${bucket}/${file}"
contentType="application/x-compressed-tar"
dateValue="`date ... | After way too much time spent on this I finally got it to work:
This line:
```
signature=`/bin/echo -n "$stringToSign" | openssl sha1 -hmac ${s3Secret} -binary | base64`
```
is missing an 'e':
```
signature=`/bin/echo -en "$stringToSign" | openssl sha1 -hmac ${s3Secret} -binary | base64`
```
In other words, charac... |
26849247 | What is the POSIX shell equivalent of bash <<< | 15 | 2014-11-10 17:16:30 | <p>I have a variable that looks sort of like this:</p>
<pre><code>msg="newton apple tree"
</code></pre>
<p>I want to assign each of these words into separate variables. This is easy to do in bash:</p>
<pre><code>read a b c <<< $msg
</code></pre>
<p>Is there a compact, readable way to do this in POSIX shel... | 5,018 | 1,660,508 | 2014-11-10 18:18:02 | 26,849,455 | 11 | 2014-11-10 17:29:10 | 1,899,640 | 2014-11-10 17:29:10 | https://stackoverflow.com/q/26849247 | https://stackoverflow.com/a/26849455 | <p>To write idiomatic scripts, you can't just look at each individual syntax element and try to find a POSIX equivalent. That's like translating text by replacing each individual word with its entry in the dictionary.</p>
<p>The POSIX way of splitting a string known to have three words into three arguments, similar bu... | <p>To write idiomatic scripts, you can't just look at each individual syntax element and try to find a POSIX equivalent. That's like translating text by replacing each individual word with its entry in the dictionary.</p> <p>The POSIX way of splitting a string known to have three words into three arguments, similar bu... | 387, 10327 | bash, sh | <h1>What is the POSIX shell equivalent of bash <<<</h1>
<p>I have a variable that looks sort of like this:</p>
<pre><code>msg="newton apple tree"
</code></pre>
<p>I want to assign each of these words into separate variables. This is easy to do in bash:</p>
<pre><code>read a b c <<< $msg
</code></pre>
<p>I... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,238 | bash | # What is the POSIX shell equivalent of bash <<<
I have a variable that looks sort of like this:
```
msg="newton apple tree"
```
I want to assign each of these words into separate variables. This is easy to do in bash:
```
read a b c <<< $msg
```
Is there a compact, readable way to do this in POSIX shell? | To write idiomatic scripts, you can't just look at each individual syntax element and try to find a POSIX equivalent. That's like translating text by replacing each individual word with its entry in the dictionary.
The POSIX way of splitting a string known to have three words into three arguments, similar but not iden... |
25730978 | PowerShell Add-Type : Cannot add type. already exist | 15 | 2014-09-08 18:42:08 | <p>I'm using PowerShell script to run C# code directly in the script. I've run in to an error a particular error a few times. If I make any changes to the C# code in the PowerShell ISE and try to run it again I get the following error.</p>
<pre><code>Add-Type : Cannot add type. The type name 'AlertsOnOff10.onOff' alre... | 30,733 | 2,655,116 | 2024-10-22 17:51:02 | 25,731,143 | 11 | 2014-09-08 18:52:01 | 3,905,079 | 2022-07-21 15:40:53 | https://stackoverflow.com/q/25730978 | https://stackoverflow.com/a/25731143 | <p>To my knowledge there is no way to remove a type from a PowerShell session once it has been added.</p>
<p>The (annoying) workaround I would suggest is to write your code in one ISE session, and execute it in a completely different session (separate console window or separate ISE if you want to be able to debug).</p>... | <p>To my knowledge there is no way to remove a type from a PowerShell session once it has been added.</p> <p>The (annoying) workaround I would suggest is to write your code in one ISE session, and execute it in a completely different session (separate console window or separate ISE if you want to be able to debug).</p>... | 9, 526, 3981 | c#, powershell, runtime-error | <h1>PowerShell Add-Type : Cannot add type. already exist</h1>
<p>I'm using PowerShell script to run C# code directly in the script. I've run in to an error a particular error a few times. If I make any changes to the C# code in the PowerShell ISE and try to run it again I get the following error.</p>
<pre><code>Add-Ty... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,239 | bash | # PowerShell Add-Type : Cannot add type. already exist
I'm using PowerShell script to run C# code directly in the script. I've run in to an error a particular error a few times. If I make any changes to the C# code in the PowerShell ISE and try to run it again I get the following error.
```
Add-Type : Cannot add type... | To my knowledge there is no way to remove a type from a PowerShell session once it has been added.
The (annoying) workaround I would suggest is to write your code in one ISE session, and execute it in a completely different session (separate console window or separate ISE if you want to be able to debug).
This only m... |
20856634 | Nested ForEach() in PowerShell | 15 | 2013-12-31 11:27:02 | <p>I'm having some troubles with nested ForEach loops in Powershell. First, I need to iterate through list 1. For every object in list 1, I need to iterate through list 2. When I found the resembling object in list 2, I want to go to the next object in list 1. </p>
<p>I've tried break, i've tried continue, but it won'... | 90,601 | 2,912,774 | 2016-02-22 01:54:52 | 20,856,788 | 11 | 2013-12-31 11:39:12 | 503,046 | 2013-12-31 11:39:12 | https://stackoverflow.com/q/20856634 | https://stackoverflow.com/a/20856788 | <p>Use a label as described in <code>get-help about_break</code>:</p>
<pre><code>A Break statement can include a label. If you use the Break keyword with
a label, Windows PowerShell exits the labeled loop instead of exiting the
current loop
</code></pre>
<p>Like so,</p>
<pre><code>foreach ($objectA in @("a", "e", "i... | <p>Use a label as described in <code>get-help about_break</code>:</p> <pre><code>A Break statement can include a label. If you use the Break keyword with a label, Windows PowerShell exits the labeled loop instead of exiting the current loop </code></pre> <p>Like so,</p> <pre><code>foreach ($objectA in @("a", "e", "i... | 526, 631, 13056 | break, foreach, powershell | <h1>Nested ForEach() in PowerShell</h1>
<p>I'm having some troubles with nested ForEach loops in Powershell. First, I need to iterate through list 1. For every object in list 1, I need to iterate through list 2. When I found the resembling object in list 2, I want to go to the next object in list 1. </p>
<p>I've tried... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,240 | bash | # Nested ForEach() in PowerShell
I'm having some troubles with nested ForEach loops in Powershell. First, I need to iterate through list 1. For every object in list 1, I need to iterate through list 2. When I found the resembling object in list 2, I want to go to the next object in list 1.
I've tried break, i've trie... | Use a label as described in `get-help about_break`:
```
A Break statement can include a label. If you use the Break keyword with
a label, Windows PowerShell exits the labeled loop instead of exiting the
current loop
```
Like so,
```
foreach ($objectA in @("a", "e", "i")) {
"objectA: $objectA"
:outer
fore... |
19093208 | Powershell - Conditionally add parameter/argument to cmdlet | 15 | 2013-09-30 11:35:43 | <p>Suppose I have a Powershell script similar to this:</p>
<pre><code>$par = [...]
New-Connection `
-Server $par.Server `
-User $par.User `
-Pwd $par.Pwd `
- [...]
</code></pre>
<p>If <code>$par.Pwd</code> is empty or null, <code>New-Connection</code> will throw an error.</p>
<p>So, I only want to include this ... | 10,161 | 2,060,966 | 2022-05-03 08:47:35 | 19,094,107 | 11 | 2013-09-30 12:18:07 | 1,035,521 | 2013-09-30 12:44:29 | https://stackoverflow.com/q/19093208 | https://stackoverflow.com/a/19094107 | <p>How about using the hashtable approach to creating new objects:</p>
<pre><code>$Object = New-Object PSObject -Property @{
Name = $obj.Name
OptValue1 = $obj.OptValue1
OptValue2 = $obj.OptValue2
OptValue3 = $null
OptValue4 = "MyValue"
}
$Ob... | <p>How about using the hashtable approach to creating new objects:</p> <pre><code>$Object = New-Object PSObject -Property @{ Name = $obj.Name OptValue1 = $obj.OptValue1 OptValue2 = $obj.OptValue2 OptValue3 = $null OptValue4 = "MyValue" } $Ob... | 360, 526, 10355, 14155 | optional-parameters, parameter-passing, parameters, powershell | <h1>Powershell - Conditionally add parameter/argument to cmdlet</h1>
<p>Suppose I have a Powershell script similar to this:</p>
<pre><code>$par = [...]
New-Connection `
-Server $par.Server `
-User $par.User `
-Pwd $par.Pwd `
- [...]
</code></pre>
<p>If <code>$par.Pwd</code> is empty or null, <code>New-Connectio... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,241 | bash | # Powershell - Conditionally add parameter/argument to cmdlet
Suppose I have a Powershell script similar to this:
```
$par = [...]
New-Connection `
-Server $par.Server `
-User $par.User `
-Pwd $par.Pwd `
- [...]
```
If `$par.Pwd` is empty or null, `New-Connection` will throw an error.
So, I only want to inc... | How about using the hashtable approach to creating new objects:
```
$Object = New-Object PSObject -Property @{
Name = $obj.Name
OptValue1 = $obj.OptValue1
OptValue2 = $obj.OptValue2
OptValue3 = $null
OptValue4 = "MyValue"
}
$Object
```
**Up... |
19046882 | Shell commands are written in what language? | 15 | 2013-09-27 09:06:57 | <p>There are many shell commands, like </p>
<blockquote>
<p>ls, cd, cat etc. </p>
</blockquote>
<p>what programming language is used in writing these commands? How are they compiled?</p>
<p>My understanding:</p>
<pre><code>Shell is a program which takes command; ** does this mean that it interprets those command... | 9,983 | 3,086,011 | 2019-09-03 09:05:36 | 19,049,281 | 11 | 2013-09-27 11:11:32 | 2,602,508 | 2013-09-27 11:20:00 | https://stackoverflow.com/q/19046882 | https://stackoverflow.com/a/19049281 | <p>Most of the basic utilities in linux are written in <code>C</code> .This u can verify in <code>busybox source code</code> which supports most of basic linux command utility which are written in <code>C</code>.
So command like ls,cd ...etc are in <code>c</code></p>
<p>How shell will interpret check in below link </p... | <p>Most of the basic utilities in linux are written in <code>C</code> .This u can verify in <code>busybox source code</code> which supports most of basic linux command utility which are written in <code>C</code>. So command like ls,cd ...etc are in <code>c</code></p> <p>How shell will interpret check in below link </p... | 58, 387, 390, 2035 | bash, kernel, linux, shell | <h1>Shell commands are written in what language?</h1>
<p>There are many shell commands, like </p>
<blockquote>
<p>ls, cd, cat etc. </p>
</blockquote>
<p>what programming language is used in writing these commands? How are they compiled?</p>
<p>My understanding:</p>
<pre><code>Shell is a program which takes comma... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,242 | bash | # Shell commands are written in what language?
There are many shell commands, like
> ls, cd, cat etc.
what programming language is used in writing these commands? How are they compiled?
My understanding:
```
Shell is a program which takes command; ** does this mean that it interprets those commands(like ls is inte... | Most of the basic utilities in linux are written in `C` .This u can verify in `busybox source code` which supports most of basic linux command utility which are written in `C`.
So command like ls,cd ...etc are in `c`
How shell will interpret check in below link
in an operating system there is a special program called... |
10937065 | Signtool allows me to sign code but Set-AuthenticodeSignature says the "certificate is not suitable for code signing" | 15 | 2012-06-07 17:47:35 |
<p>I have a self-signed code signing certificate, made with the directions from <a href="https://stackoverflow.com/a/201277/80274">this answer</a>, that works fine when used with <code>signtool.exe</code>, however if I try to sign using <code>Set-AuthenticodeSignature</code>, it fails.</p>
<p>Why can I sign using <cod... | 20,782 | 80,274 | 2023-04-21 05:11:38 | 18,583,725 | 11 | 2013-09-03 03:42:41 | 1,579,659 | 2013-09-03 03:42:41 | https://stackoverflow.com/q/10937065 | https://stackoverflow.com/a/18583725 | <p>I had the same problem and the answer I figured out was that I had to <a href="http://www.hanselman.com/blog/SigningPowerShellScripts.aspx" rel="noreferrer">create two certificates</a>. First, a trusted root certificate authority using</p>
<pre><code>makecert -n "CN=PowerShell Local Certificate Root" -a sha1 -eku 1... | <p>I had the same problem and the answer I figured out was that I had to <a href="http://www.hanselman.com/blog/SigningPowerShellScripts.aspx" rel="noreferrer">create two certificates</a>. First, a trusted root certificate authority using</p> <pre><code>makecert -n "CN=PowerShell Local Certificate Root" -a sha1 -eku 1... | 526, 5953, 50005 | code-signing, powershell, signtool | <h1>Signtool allows me to sign code but Set-AuthenticodeSignature says the "certificate is not suitable for code signing"</h1>
<p>I have a self-signed code signing certificate, made with the directions from <a href="https://stackoverflow.com/a/201277/80274">this answer</a>, that works fine when used with <code>signtoo... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,243 | bash | # Signtool allows me to sign code but Set-AuthenticodeSignature says the "certificate is not suitable for code signing"
I have a self-signed code signing certificate, made with the directions from [this answer](https://stackoverflow.com/a/201277/80274), that works fine when used with `signtool.exe`, however if I try t... | I had the same problem and the answer I figured out was that I had to [create two certificates](http://www.hanselman.com/blog/SigningPowerShellScripts.aspx). First, a trusted root certificate authority using
```
makecert -n "CN=PowerShell Local Certificate Root" -a sha1 -eku 1.3.6.1.5.5.7.3.3 -r -sv root.pvk root.cer ... |
7313491 | Variables getting reset after the while read loop that reads from a pipeline | 15 | 2011-09-05 23:13:29 | <pre><code>initiate () {
read -p "Location(s) to look for .bsp files in? " loc
find $loc -name "*.bsp" | while read
do
if [ -f "$loc.bz2" ]
then
continue
else
filcount=$[$filcount+1]
bzip $loc
fi
if [ "$scan" == "1" ]; then bzipint $loc
fi
echo $filcount #Correct c... | 7,847 | null | 2024-11-14 20:42:20 | 7,313,558 | 11 | 2011-09-05 23:28:02 | 450,128 | 2011-09-05 23:28:02 | https://stackoverflow.com/q/7313491 | https://stackoverflow.com/a/7313558 | <p>I ran into this problem yesterday.</p>
<p>The trouble is that you're doing <code>find $loc -name "*.bsp" | while read</code>. Because this involves a pipe, the <code>while read</code> loop can't actually be running in the same bash process as the rest of your script; bash has to spawn off a subprocess so that it ca... | <p>I ran into this problem yesterday.</p> <p>The trouble is that you're doing <code>find $loc -name "*.bsp" | while read</code>. Because this involves a pipe, the <code>while read</code> loop can't actually be running in the same bash process as the rest of your script; bash has to spawn off a subprocess so that it ca... | 387, 390, 17310, 57788 | bash, shell, subshell, while-loop | <h1>Variables getting reset after the while read loop that reads from a pipeline</h1>
<pre><code>initiate () {
read -p "Location(s) to look for .bsp files in? " loc
find $loc -name "*.bsp" | while read
do
if [ -f "$loc.bz2" ]
then
continue
else
filcount=$[$filcount+1]
bzip $loc
f... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,244 | bash | # Variables getting reset after the while read loop that reads from a pipeline
```
initiate () {
read -p "Location(s) to look for .bsp files in? " loc
find $loc -name "*.bsp" | while read
do
if [ -f "$loc.bz2" ]
then
continue
else
filcount=$[$filcount+1]
bzip $loc
fi
if [ "$... | I ran into this problem yesterday.
The trouble is that you're doing `find $loc -name "*.bsp" | while read`. Because this involves a pipe, the `while read` loop can't actually be running in the same bash process as the rest of your script; bash has to spawn off a subprocess so that it can connect the the stdout of `fin... |
3474318 | shell/ batch scripting to direct commands to adb shell | 15 | 2010-08-13 06:11:35 | <p>I am trying to write a batch(for win) and a shell script for linux to automate key and touch events on a android UI. At the moment in a windows batch file I am starting a adb shell for each event for eg</p>
<pre><code> :again
adb shell am start -a android.intent.action.MAIN -n com.q.me.fui.activity/.InitActivit... | 64,133 | 414,752 | 2017-03-02 14:06:00 | 3,474,643 | 11 | 2010-08-13 07:09:12 | 306,602 | 2016-03-19 02:21:23 | https://stackoverflow.com/q/3474318 | https://stackoverflow.com/a/3474643 | <p>I don't know much about batch scripting or shell scripting, but I was able to quickly write a java program to do this:</p>
<pre><code>import java.io.InputStream;
import java.io.OutputStream;
import java.io.IOException;
public class AndroidShell {
private ProcessBuilder builder;
private Process adb;
priva... | <p>I don't know much about batch scripting or shell scripting, but I was able to quickly write a java program to do this:</p> <pre><code>import java.io.InputStream; import java.io.OutputStream; import java.io.IOException; public class AndroidShell { private ProcessBuilder builder; private Process adb; priva... | 390, 1386, 7002, 22975 | adb, android, batch-file, shell | <h1>shell/ batch scripting to direct commands to adb shell</h1>
<p>I am trying to write a batch(for win) and a shell script for linux to automate key and touch events on a android UI. At the moment in a windows batch file I am starting a adb shell for each event for eg</p>
<pre><code> :again
adb shell am start -a ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,245 | bash | # shell/ batch scripting to direct commands to adb shell
I am trying to write a batch(for win) and a shell script for linux to automate key and touch events on a android UI. At the moment in a windows batch file I am starting a adb shell for each event for eg
```
:again
adb shell am start -a android.intent.actio... | I don't know much about batch scripting or shell scripting, but I was able to quickly write a java program to do this:
```
import java.io.InputStream;
import java.io.OutputStream;
import java.io.IOException;
public class AndroidShell {
private ProcessBuilder builder;
private Process adb;
private static fina... |
1491647 | Grep ignore multiple lines | 15 | 2009-09-29 10:06:14 | <p>Is there a way with Grep to use the -v switch to ignore a line and the next number of lines after it. Its basically to filter exceptions from a log file i.e.</p>
<pre><code>Valid log entry 1
Exception exceptionname
at a.b.c
at d.e.f
...
Valid log entry 2
</code></pre>
<p>grep it to produce : </p>
<pre... | 7,919 | 181,023 | 2016-04-27 22:44:07 | 1,492,538 | 11 | 2009-09-29 13:25:13 | 7,552 | 2009-09-29 13:25:13 | https://stackoverflow.com/q/1491647 | https://stackoverflow.com/a/1492538 | <p>Try awk:</p>
<pre><code>awk -v nlines=2 '/^Exception/ {for (i=0; i<nlines; i++) {getline}; next} 1'
</code></pre>
| <p>Try awk:</p> <pre><code>awk -v nlines=2 '/^Exception/ {for (i=0; i<nlines; i++) {getline}; next} 1' </code></pre> | 390, 1271 | grep, shell | <h1>Grep ignore multiple lines</h1>
<p>Is there a way with Grep to use the -v switch to ignore a line and the next number of lines after it. Its basically to filter exceptions from a log file i.e.</p>
<pre><code>Valid log entry 1
Exception exceptionname
at a.b.c
at d.e.f
...
Valid log entry 2
</code></pre>... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,246 | bash | # Grep ignore multiple lines
Is there a way with Grep to use the -v switch to ignore a line and the next number of lines after it. Its basically to filter exceptions from a log file i.e.
```
Valid log entry 1
Exception exceptionname
at a.b.c
at d.e.f
...
Valid log entry 2
```
grep it to produce :
```
Va... | Try awk:
```
awk -v nlines=2 '/^Exception/ {for (i=0; i<nlines; i++) {getline}; next} 1'
``` |
574695 | How does "while (sleep 100 &!) do; done" work in zsh, and how could it be replicated in bash? | 15 | 2009-02-22 10:20:44 | <p>According to <a href="http://en.wikipedia.org/wiki/Fork_bomb" rel="noreferrer">Wikipedia</a>, the forkbomb <code>:(){ :|:& };:</code> can be stopped with the zsh command <code>while (sleep 100 &!) do; done</code>, which will supposedly spawn sleep 100 processes until all the forkbomb processes are gone. Thi... | 5,622 | null | 2013-11-12 01:49:22 | 574,811 | 11 | 2009-02-22 12:02:45 | 67,829 | 2009-02-22 12:02:45 | https://stackoverflow.com/q/574695 | https://stackoverflow.com/a/574811 | <p>The reason that a fork-bomb works is because there is a finite limit to the number of processes that can be running at any one time, and a fork-bomb is designed to fill this limit.</p>
<p>Because the forkbomb code you provided dies if it cannot spawn a child process, the parent processes do not actually hang around... | <p>The reason that a fork-bomb works is because there is a finite limit to the number of processes that can be running at any one time, and a fork-bomb is designed to fill this limit.</p> <p>Because the forkbomb code you provided dies if it cannot spawn a child process, the parent processes do not actually hang around... | 58, 387, 390, 3791 | bash, linux, shell, zsh | <h1>How does "while (sleep 100 &!) do; done" work in zsh, and how could it be replicated in bash?</h1>
<p>According to <a href="http://en.wikipedia.org/wiki/Fork_bomb" rel="noreferrer">Wikipedia</a>, the forkbomb <code>:(){ :|:& };:</code> can be stopped with the zsh command <code>while (sleep 100 &!) do; done<... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,247 | bash | # How does "while (sleep 100 &!) do; done" work in zsh, and how could it be replicated in bash?
According to [Wikipedia](http://en.wikipedia.org/wiki/Fork_bomb), the forkbomb `:(){ :|:& };:` can be stopped with the zsh command `while (sleep 100 &!) do; done`, which will supposedly spawn sleep 100 processes until all t... | The reason that a fork-bomb works is because there is a finite limit to the number of processes that can be running at any one time, and a fork-bomb is designed to fill this limit.
Because the forkbomb code you provided dies if it cannot spawn a child process, the parent processes do not actually hang around, but the ... |
44081972 | Windows 10 Gradle: JAVA_HOME is set to an invalid directory | 14 | 2017-05-20 04:41:02 | <p>I was trying to run <code>./gradlew bootRun</code> in both <strong>Git Bash</strong> and <strong>PowerShell</strong>, and got this error: <code>ERROR: JAVA_HOME is set to an invalid directory: C:\Program Files\Java\jre1.8.0_121</code></p>
<p>The <strong>gradlew</strong> file is inside the project directory that clo... | 41,320 | 3,261,923 | 2023-09-06 15:47:20 | 44,082,086 | 11 | 2017-05-20 04:59:11 | 5,761,558 | 2017-05-20 04:59:11 | https://stackoverflow.com/q/44081972 | https://stackoverflow.com/a/44082086 | <p>Looks like your JAVA_HOME variable resolves to a JRE installation directory. But as you're talking about Gradle, you're surely trying to build/compile code.</p>
<p>If you have a JDK installed, change JAVA_HOME variable to point to it. The folder name should typically start with "jdk". Otherwise, you have to install... | <p>Looks like your JAVA_HOME variable resolves to a JRE installation directory. But as you're talking about Gradle, you're surely trying to build/compile code.</p> <p>If you have a JDK installed, change JAVA_HOME variable to point to it. The folder name should typically start with "jdk". Otherwise, you have to install... | 17, 1211, 32307, 61874 | git-bash, gradle, java, spring | <h1>Windows 10 Gradle: JAVA_HOME is set to an invalid directory</h1>
<p>I was trying to run <code>./gradlew bootRun</code> in both <strong>Git Bash</strong> and <strong>PowerShell</strong>, and got this error: <code>ERROR: JAVA_HOME is set to an invalid directory: C:\Program Files\Java\jre1.8.0_121</code></p>
<p>The <... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,248 | bash | # Windows 10 Gradle: JAVA_HOME is set to an invalid directory
I was trying to run `./gradlew bootRun` in both **Git Bash** and **PowerShell**, and got this error: `ERROR: JAVA_HOME is set to an invalid directory: C:\Program Files\Java\jre1.8.0_121`
The **gradlew** file is inside the project directory that cloned from... | Looks like your JAVA_HOME variable resolves to a JRE installation directory. But as you're talking about Gradle, you're surely trying to build/compile code.
If you have a JDK installed, change JAVA_HOME variable to point to it. The folder name should typically start with "jdk". Otherwise, you have to install a Java De... |
30942021 | powershell Start-Process exit code -1073741502 when used with Credential from a windows service environment | 14 | 2015-06-19 15:33:34 | <p>I'm running into a strange behavior with a powershell Start-Process call. </p>
<p>Here is the call:</p>
<pre><code>$process = start-process `
"C:\somepath\MyBinary.exe" `
-PassThru `
-Credential $defaultCredential `
-Wait `
-WorkingDirectory "C:\somepath" `
-LoadUserProfile
if ($process.E... | 8,931 | 4,306,452 | 2016-06-06 06:48:52 | 30,985,036 | 11 | 2015-06-22 16:21:50 | 1,687,106 | 2015-06-22 16:21:50 | https://stackoverflow.com/q/30942021 | https://stackoverflow.com/a/30985036 | <p><code>start-process</code> is an 'alias' for <code>System.Diagnostics.Process.Start()</code>, so yes, it does make use of <code>CreateProcessWithLogonW()</code>. As noted, this method can't be called from a service process, it can only be called from an 'interactive' process. The caveat to that "only" is the one you... | <p><code>start-process</code> is an 'alias' for <code>System.Diagnostics.Process.Start()</code>, so yes, it does make use of <code>CreateProcessWithLogonW()</code>. As noted, this method can't be called from a service process, it can only be called from an 'interactive' process. The caveat to that "only" is the one you... | 526, 5357, 26462 | credentials, powershell, start-process | <h1>powershell Start-Process exit code -1073741502 when used with Credential from a windows service environment</h1>
<p>I'm running into a strange behavior with a powershell Start-Process call. </p>
<p>Here is the call:</p>
<pre><code>$process = start-process `
"C:\somepath\MyBinary.exe" `
-PassThru `
-C... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,249 | bash | # powershell Start-Process exit code -1073741502 when used with Credential from a windows service environment
I'm running into a strange behavior with a powershell Start-Process call.
Here is the call:
```
$process = start-process `
"C:\somepath\MyBinary.exe" `
-PassThru `
-Credential $defaultCredential ... | `start-process` is an 'alias' for `System.Diagnostics.Process.Start()`, so yes, it does make use of `CreateProcessWithLogonW()`. As noted, this method can't be called from a service process, it can only be called from an 'interactive' process. The caveat to that "only" is the one you've discovered - that when you aren'... |
21742227 | RedHat daemon function usage | 14 | 2014-02-12 23:32:36 | <p>I'm working on an init script for Jetty on RHEL. Trying to use the <code>daemon</code> function provided by the init library (<code>/etc/rc.d/init.d/functions</code>).</p>
<p>I found <a href="http://www.sensi.org/~alec/unix/redhat/sysvinit.html">this terse documentation</a>, and <a href="http://bitten.edgewall.org/... | 30,569 | 680,920 | 2019-08-09 18:33:41 | 28,113,403 | 11 | 2015-01-23 15:40:44 | 125,048 | 2019-08-09 18:33:41 | https://stackoverflow.com/q/21742227 | https://stackoverflow.com/a/28113403 | <p>To answer the question you guess that you have, is that <code>--pidfile</code> is used to check whether the daemon process is already running. On RHEL (and derivates) the <code>daemon</code> function won't write the pidfile.</p>
<p>In the case that the program stays in the foreground it has to be explicitly sent to... | <p>To answer the question you guess that you have, is that <code>--pidfile</code> is used to check whether the daemon process is already running. On RHEL (and derivates) the <code>daemon</code> function won't write the pidfile.</p> <p>In the case that the program stays in the foreground it has to be explicitly sent to... | 58, 387, 2205, 2510, 7280 | bash, daemon, init, linux, redhat | <h1>RedHat daemon function usage</h1>
<p>I'm working on an init script for Jetty on RHEL. Trying to use the <code>daemon</code> function provided by the init library (<code>/etc/rc.d/init.d/functions</code>).</p>
<p>I found <a href="http://www.sensi.org/~alec/unix/redhat/sysvinit.html">this terse documentation</a>, an... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,250 | bash | # RedHat daemon function usage
I'm working on an init script for Jetty on RHEL. Trying to use the `daemon` function provided by the init library (`/etc/rc.d/init.d/functions`).
I found [this terse documentation](http://www.sensi.org/~alec/unix/redhat/sysvinit.html), and [an online example](http://bitten.edgewall.org/... | To answer the question you guess that you have, is that `--pidfile` is used to check whether the daemon process is already running. On RHEL (and derivates) the `daemon` function won't write the pidfile.
In the case that the program stays in the foreground it has to be explicitly sent to the background by appending `&`... |
26861118 | Rounding Numbers with bc in Bash | 14 | 2014-11-11 09:04:59 | <p>I want to compute an average with 3 decimal figures, rounded to nearest, using <code>bc</code>.</p>
<p>For example:</p>
<blockquote>
<p>average of 3, 3 and 5 should yield 3.667</p>
</blockquote>
<p>and</p>
<blockquote>
<p>average of 3, 3 and 4 should yield 3.333</p>
</blockquote>
<p>I tried:</p>
<pre><code... | 26,074 | 4,238,839 | 2019-05-28 20:02:37 | 26,864,946 | 11 | 2014-11-11 12:28:37 | 1,815,797 | 2014-11-11 12:46:04 | https://stackoverflow.com/q/26861118 | https://stackoverflow.com/a/26864946 | <p>Your trick to add <code>0.0005</code> is not a bad idea. Though, it doesn't quite work that way. <code>scale</code> is used internally when <code>bc</code> performs some operations (like divisions).</p>
<p>In your case, it would be better to perform the division first, maybe using a large <code>scale</code> or the ... | <p>Your trick to add <code>0.0005</code> is not a bad idea. Though, it doesn't quite work that way. <code>scale</code> is used internally when <code>bc</code> performs some operations (like divisions).</p> <p>In your case, it would be better to perform the division first, maybe using a large <code>scale</code> or the ... | 58, 387, 34696 | bash, bc, linux | <h1>Rounding Numbers with bc in Bash</h1>
<p>I want to compute an average with 3 decimal figures, rounded to nearest, using <code>bc</code>.</p>
<p>For example:</p>
<blockquote>
<p>average of 3, 3 and 5 should yield 3.667</p>
</blockquote>
<p>and</p>
<blockquote>
<p>average of 3, 3 and 4 should yield 3.333</p>
... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,251 | bash | # Rounding Numbers with bc in Bash
I want to compute an average with 3 decimal figures, rounded to nearest, using `bc`.
For example:
> average of 3, 3 and 5 should yield 3.667
and
> average of 3, 3 and 4 should yield 3.333
I tried:
```
echo "scale=3; $sum/$n+0.0005" | bc
```
but `scale` doesn't behave as I expe... | Your trick to add `0.0005` is not a bad idea. Though, it doesn't quite work that way. `scale` is used internally when `bc` performs some operations (like divisions).
In your case, it would be better to perform the division first, maybe using a large `scale` or the `-l` switch to `bc`1 (if your version supports it), th... |
21771313 | Git diff - ignore reorder | 14 | 2014-02-14 05:11:45 | <p>git diff numbers</p>
<pre><code>diff --git a/numbers b/numbers
index 5f5fbe7..d184fef 100644
--- a/numbers
+++ b/numbers
@@ -1,3 +1,3 @@
-1
+4
+3
2
-3
</code></pre>
<p>Number 3 is repeated but the order is changed.
Any way to ignore the reorder in git or any grep solution?
I want the result of only added and dele... | 2,497 | 2,553,035 | 2019-05-23 10:56:48 | 21,779,343 | 11 | 2014-02-14 12:23:55 | 3,099,074 | 2014-02-14 12:31:26 | https://stackoverflow.com/q/21771313 | https://stackoverflow.com/a/21779343 | <p>The diffing tools are usually implemented in terms of the Myers' diff algorithm. There isn't much that you can do to control the behaviour of GNU/git/diff. (There are a couple of switches that you can pass to diff to affect the behaviour, but in your case they are irrelevant.)</p>
<p>You could simply post-process t... | <p>The diffing tools are usually implemented in terms of the Myers' diff algorithm. There isn't much that you can do to control the behaviour of GNU/git/diff. (There are a couple of switches that you can pass to diff to affect the behaviour, but in your case they are irrelevant.)</p> <p>You could simply post-process t... | 119, 387, 390, 606, 10327 | bash, diff, git, sh, shell | <h1>Git diff - ignore reorder</h1>
<p>git diff numbers</p>
<pre><code>diff --git a/numbers b/numbers
index 5f5fbe7..d184fef 100644
--- a/numbers
+++ b/numbers
@@ -1,3 +1,3 @@
-1
+4
+3
2
-3
</code></pre>
<p>Number 3 is repeated but the order is changed.
Any way to ignore the reorder in git or any grep solution?
I wan... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,252 | bash | # Git diff - ignore reorder
git diff numbers
```
diff --git a/numbers b/numbers
index 5f5fbe7..d184fef 100644
--- a/numbers
+++ b/numbers
@@ -1,3 +1,3 @@
-1
+4
+3
2
-3
```
Number 3 is repeated but the order is changed.
Any way to ignore the reorder in git or any grep solution?
I want the result of only added and de... | The diffing tools are usually implemented in terms of the Myers' diff algorithm. There isn't much that you can do to control the behaviour of GNU/git/diff. (There are a couple of switches that you can pass to diff to affect the behaviour, but in your case they are irrelevant.)
You could simply post-process the output ... |
21218074 | How to just input 'y' without having to press ENTER? | 14 | 2014-01-19 14:35:26 | <p>Using this portion of a bash script as an example</p>
<pre><code>{
read -p "Do you want to update the tv feed? [y/n/q] " ynq
case $ynq in
[Yy]* ) rm ~/cron/beeb.txt; /usr/bin/get-iplayer --type tv>>~/cron/beeb.txt;;
[Nn]* ) echo;;
[Qq]* ) exit;;
* ) echo "Please answer yes or no. "... | 11,061 | 2,513,103 | 2021-11-14 22:37:33 | 21,218,201 | 11 | 2014-01-19 14:46:47 | 89,817 | 2014-01-19 14:58:54 | https://stackoverflow.com/q/21218074 | https://stackoverflow.com/a/21218201 | <p>Add <code>-n 1</code> to the <code>read</code> command's options. From the bash manpage:</p>
<pre><code>-n nchars
read returns after reading nchars characters rather than
waiting for a complete line of input.
</code></pre>
<p>BTW, you should also double-quote <code>"$ynq"</code> -- sometimes users <em>wil... | <p>Add <code>-n 1</code> to the <code>read</code> command's options. From the bash manpage:</p> <pre><code>-n nchars read returns after reading nchars characters rather than waiting for a complete line of input. </code></pre> <p>BTW, you should also double-quote <code>"$ynq"</code> -- sometimes users <em>wil... | 387 | bash | <h1>How to just input 'y' without having to press ENTER?</h1>
<p>Using this portion of a bash script as an example</p>
<pre><code>{
read -p "Do you want to update the tv feed? [y/n/q] " ynq
case $ynq in
[Yy]* ) rm ~/cron/beeb.txt; /usr/bin/get-iplayer --type tv>>~/cron/beeb.txt;;
[Nn]* ) echo... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,253 | bash | # How to just input 'y' without having to press ENTER?
Using this portion of a bash script as an example
```
{
read -p "Do you want to update the tv feed? [y/n/q] " ynq
case $ynq in
[Yy]* ) rm ~/cron/beeb.txt; /usr/bin/get-iplayer --type tv>>~/cron/beeb.txt;;
[Nn]* ) echo;;
[Qq]* ) exit;;
... | Add `-n 1` to the `read` command's options. From the bash manpage:
```
-n nchars
read returns after reading nchars characters rather than
waiting for a complete line of input.
```
BTW, you should also double-quote `"$ynq"` -- sometimes users *will* just press return, which can cause weird behavior if the var... |
19901906 | Detect daylight saving time in bash | 14 | 2013-11-11 08:31:44 | <p>I want to detect if I'm in winter or summer time. My current approach is:</p>
<pre><code>if date +%Z | grep -e CET -e EST; then
# I'm in winter time
else
# I'm in summer time
fi
</code></pre>
<p>which have obvious drawback as you have to know all the timezone names.</p>
| 18,717 | 2,229,885 | 2024-09-20 09:45:09 | 19,902,806 | 11 | 2013-11-11 09:24:41 | 1,030,675 | 2024-09-20 09:45:09 | https://stackoverflow.com/q/19901906 | https://stackoverflow.com/a/19902806 | <p>Perl to the rescue:</p>
<pre><code>if perl -e 'exit ((localtime)[8])' ; then
echo winter
else
echo summer
fi
</code></pre>
<p>That's because <a href="https://perldoc.pl/perlfunc#localtime" rel="nofollow noreferrer">localtime</a> returns the following list:</p>
<pre class="lang-perl prettyprint-override"><cod... | <p>Perl to the rescue:</p> <pre><code>if perl -e 'exit ((localtime)[8])' ; then echo winter else echo summer fi </code></pre> <p>That's because <a href="https://perldoc.pl/perlfunc#localtime" rel="nofollow noreferrer">localtime</a> returns the following list:</p> <pre class="lang-perl prettyprint-override"><cod... | 387, 5002, 33279 | bash, date, dst | <h1>Detect daylight saving time in bash</h1>
<p>I want to detect if I'm in winter or summer time. My current approach is:</p>
<pre><code>if date +%Z | grep -e CET -e EST; then
# I'm in winter time
else
# I'm in summer time
fi
</code></pre>
<p>which have obvious drawback as you have to know all the timezone names.... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,254 | bash | # Detect daylight saving time in bash
I want to detect if I'm in winter or summer time. My current approach is:
```
if date +%Z | grep -e CET -e EST; then
# I'm in winter time
else
# I'm in summer time
fi
```
which have obvious drawback as you have to know all the timezone names. | Perl to the rescue:
```
if perl -e 'exit ((localtime)[8])' ; then
echo winter
else
echo summer
fi
```
That's because [localtime](https://perldoc.pl/perlfunc#localtime) returns the following list:
```
# 0 1 2 3 4 5 6 7 8
my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst)... |
18410785 | Bash script containing binary executable | 14 | 2013-08-23 19:51:01 | <p>Is it possible to write a bash script, which would contain a binary executable program inside?</p>
<p>I mean a script, which would contain a dump of an executable in a textual form, which will be dumped back to an executable by this script when it is executed?</p>
<p>I would love to know a solution, which will wor... | 27,754 | 2,427,895 | 2023-06-25 01:23:43 | 18,410,939 | 11 | 2013-08-23 20:02:22 | 1,525,291 | 2013-09-03 19:18:57 | https://stackoverflow.com/q/18410785 | https://stackoverflow.com/a/18410939 | <p>i never done something like this before ;)
this will compile some c source, create a <code>b.bash</code> script containing the binary (and the original script for simple development)</p>
<p>(a.bash)</p>
<pre><code>#!/bin/bash
if [ "$0" == "b.bash" ];then
tail -n +$[ `grep -n '^BINARY' $0|cut -d ':' -f 1` + 1 ] ... | <p>i never done something like this before ;) this will compile some c source, create a <code>b.bash</code> script containing the binary (and the original script for simple development)</p> <p>(a.bash)</p> <pre><code>#!/bin/bash if [ "$0" == "b.bash" ];then tail -n +$[ `grep -n '^BINARY' $0|cut -d ':' -f 1` + 1 ] ... | 34, 368, 387, 4779 | bash, binary, dump, unix | <h1>Bash script containing binary executable</h1>
<p>Is it possible to write a bash script, which would contain a binary executable program inside?</p>
<p>I mean a script, which would contain a dump of an executable in a textual form, which will be dumped back to an executable by this script when it is executed?</p>
... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,255 | bash | # Bash script containing binary executable
Is it possible to write a bash script, which would contain a binary executable program inside?
I mean a script, which would contain a dump of an executable in a textual form, which will be dumped back to an executable by this script when it is executed?
I would love to know... | i never done something like this before ;)
this will compile some c source, create a `b.bash` script containing the binary (and the original script for simple development)
(a.bash)
```
#!/bin/bash
if [ "$0" == "b.bash" ];then
tail -n +$[ `grep -n '^BINARY' $0|cut -d ':' -f 1` + 1 ] $0 | base64 -d > a2.out
chmod ... |
17130299 | What's the difference between "grep -e" and "grep -E" | 14 | 2013-06-16 04:50:18 | <p>I have a file <code>test.txt</code>, in which there are some formatted phone numbers. I'm trying to use <code>grep</code> to find the lines containing a phone number.</p>
<p>It seems that <code>grep -e "[0-9]{3}-[0-9]{3}-[0-9]{4}" test.txt</code> doesn't work and gives no results. But <code>grep -E "[0-9]{3}-[0-9]{... | 36,633 | 2,440,712 | 2013-06-16 05:16:04 | 17,130,319 | 11 | 2013-06-16 04:54:27 | 2,000,867 | 2013-06-16 05:16:04 | https://stackoverflow.com/q/17130299 | https://stackoverflow.com/a/17130319 | <p>As you mentioned, <code>grep -E</code> is for extended regular expressions <strike>whereas <code>-e</code> is for basic regular expressions</strike>. From the man page:</p>
<p>EDIT: As Jonathan pointed out below, <code>grep -e</code> "specifies that the following argument is (one of) the regular expression(s) to be... | <p>As you mentioned, <code>grep -E</code> is for extended regular expressions <strike>whereas <code>-e</code> is for basic regular expressions</strike>. From the man page:</p> <p>EDIT: As Jonathan pointed out below, <code>grep -e</code> "specifies that the following argument is (one of) the regular expression(s) to be... | 58, 390, 1271 | grep, linux, shell | <h1>What's the difference between "grep -e" and "grep -E"</h1>
<p>I have a file <code>test.txt</code>, in which there are some formatted phone numbers. I'm trying to use <code>grep</code> to find the lines containing a phone number.</p>
<p>It seems that <code>grep -e "[0-9]{3}-[0-9]{3}-[0-9]{4}" test.txt</code> doesn'... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,256 | bash | # What's the difference between "grep -e" and "grep -E"
I have a file `test.txt`, in which there are some formatted phone numbers. I'm trying to use `grep` to find the lines containing a phone number.
It seems that `grep -e "[0-9]{3}-[0-9]{3}-[0-9]{4}" test.txt` doesn't work and gives no results. But `grep -E "[0-9]{... | As you mentioned, `grep -E` is for extended regular expressions whereas `-e` is for basic regular expressions. From the man page:
EDIT: As Jonathan pointed out below, `grep -e` "specifies that the following argument is (one of) the regular expression(s) to be matched."
> ### Basic vs Extended Regular Expressions
>
> ... |
10187837 | Granting SeServiceLogonRight to a user from PowerShell | 14 | 2012-04-17 08:38:25 | <p>In a script I'm currently writing, I create a dedicated user for starting some windows services that we internally developed. In order to start those services, our "dedicated" user needs the SeServiceLogonRight privilege. Currently, I'm assigning that privilege using ntrights.exe with the following call from my Powe... | 37,494 | 311,712 | 2025-02-11 18:20:48 | 10,188,472 | 11 | 2012-04-17 09:19:10 | 251,123 | 2012-04-17 09:39:50 | https://stackoverflow.com/q/10187837 | https://stackoverflow.com/a/10188472 | <p>This worked for me. You can decide which is cleaner ;-) The key is the LsaAddAccountRights windows API function.</p>
<pre><code>Add-Type @'
using System;
using System.Collections.Generic;
using System.Text;
namespace MyLsaWrapper
{
using System.Runtime.InteropServices;
using System.Security;
using Syst... | <p>This worked for me. You can decide which is cleaner ;-) The key is the LsaAddAccountRights windows API function.</p> <pre><code>Add-Type @' using System; using System.Collections.Generic; using System.Text; namespace MyLsaWrapper { using System.Runtime.InteropServices; using System.Security; using Syst... | 526 | powershell | <h1>Granting SeServiceLogonRight to a user from PowerShell</h1>
<p>In a script I'm currently writing, I create a dedicated user for starting some windows services that we internally developed. In order to start those services, our "dedicated" user needs the SeServiceLogonRight privilege. Currently, I'm assigning that p... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,257 | bash | # Granting SeServiceLogonRight to a user from PowerShell
In a script I'm currently writing, I create a dedicated user for starting some windows services that we internally developed. In order to start those services, our "dedicated" user needs the SeServiceLogonRight privilege. Currently, I'm assigning that privilege ... | This worked for me. You can decide which is cleaner ;-) The key is the LsaAddAccountRights windows API function.
```
Add-Type @'
using System;
using System.Collections.Generic;
using System.Text;
namespace MyLsaWrapper
{
using System.Runtime.InteropServices;
using System.Security;
using System.Management;... |
8590872 | Pipe emacs shell output to a new buffer | 14 | 2011-12-21 13:52:46 | <p>For example, I want to be able to type something like:</p>
<pre><code>$ git diff | tempbuffer
</code></pre>
<p>and have the diff opened in a new, unsaved buffer.</p>
| 8,794 | 1,109,968 | 2018-01-18 11:41:48 | 8,591,023 | 11 | 2011-12-21 14:04:00 | 324,105 | 2011-12-21 14:04:00 | https://stackoverflow.com/q/8590872 | https://stackoverflow.com/a/8591023 | <p>You can just use <kbd>M-!</kbd> -- it will run the command within the same cwd as your shell buffer, and output the results to a <code>*Shell Command Output*</code> buffer.</p>
<p>Note that if the results are brief, that buffer will not be raised and the output will be copied to the echo area; however the buffer <e... | <p>You can just use <kbd>M-!</kbd> -- it will run the command within the same cwd as your shell buffer, and output the results to a <code>*Shell Command Output*</code> buffer.</p> <p>Note that if the results are brief, that buffer will not be raised and the output will be copied to the echo area; however the buffer <e... | 371, 390 | emacs, shell | <h1>Pipe emacs shell output to a new buffer</h1>
<p>For example, I want to be able to type something like:</p>
<pre><code>$ git diff | tempbuffer
</code></pre>
<p>and have the diff opened in a new, unsaved buffer.</p>
| q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,258 | bash | # Pipe emacs shell output to a new buffer
For example, I want to be able to type something like:
```
$ git diff | tempbuffer
```
and have the diff opened in a new, unsaved buffer. | You can just use `M-!` -- it will run the command within the same cwd as your shell buffer, and output the results to a `*Shell Command Output*` buffer.
Note that if the results are brief, that buffer will not be raised and the output will be copied to the echo area; however the buffer *is* still used and available. `... |
5317315 | Executing a Powershell script from PHP | 14 | 2011-03-15 20:01:16 | <p>I'm trying to execute a powershell script from PHP, but it does not seem to work.</p>
<p>The script 'newEvent.ps1' creates an event on the Exchange server.</p>
<pre><code>$psPath = "powershell.exe";
$psDIR = "C:\\wamp\\www\\ant\\assets\\ps\\";
$psScript = "newEvent.ps1";
$runScript = $psDIR. $psScript;
$runCMD = $... | 80,950 | 638,077 | 2024-02-29 17:48:18 | 5,319,219 | 11 | 2011-03-15 23:19:58 | 125,356 | 2021-08-03 14:01:47 | https://stackoverflow.com/q/5317315 | https://stackoverflow.com/a/5319219 | <p>It looks like your command is surrounded by single-quotes. I think if you remove them, your command should run.</p>
<p><code>shell_exec</code> returns the output from the command you run. To further diagnose, store the output in a variable, then print it out:</p>
<pre><code>$output = shell_exec($runCMD);
echo '<... | <p>It looks like your command is surrounded by single-quotes. I think if you remove them, your command should run.</p> <p><code>shell_exec</code> returns the output from the command you run. To further diagnose, store the output in a variable, then print it out:</p> <pre><code>$output = shell_exec($runCMD); echo '<... | 5, 526, 2060, 8646 | exchange-server, php, powershell, shell-exec | <h1>Executing a Powershell script from PHP</h1>
<p>I'm trying to execute a powershell script from PHP, but it does not seem to work.</p>
<p>The script 'newEvent.ps1' creates an event on the Exchange server.</p>
<pre><code>$psPath = "powershell.exe";
$psDIR = "C:\\wamp\\www\\ant\\assets\\ps\\";
$psScript = "newEvent.p... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,259 | bash | # Executing a Powershell script from PHP
I'm trying to execute a powershell script from PHP, but it does not seem to work.
The script 'newEvent.ps1' creates an event on the Exchange server.
```
$psPath = "powershell.exe";
$psDIR = "C:\\wamp\\www\\ant\\assets\\ps\\";
$psScript = "newEvent.ps1";
$runScript = $psDIR. $... | It looks like your command is surrounded by single-quotes. I think if you remove them, your command should run.
`shell_exec` returns the output from the command you run. To further diagnose, store the output in a variable, then print it out:
```
$output = shell_exec($runCMD);
echo '<pre>' . $output . '</pre>';
```
M... |
2674117 | How to sort output of "s3cmd ls" | 14 | 2010-04-20 10:01:56 | <p>Amazon "s3cmd ls" takes like this output:<br></p>
<pre><code>2010-02-20 21:01 1458414588 s3://file1.tgz.00<br>
2010-02-20 21:10 1458414527 s3://file1.tgz.01<br>
2010-02-20 22:01 1458414588 s3://file2.tgz.00<br>
2010-02-20 23:10 1458414527 s3://file2.tgz.01<br>
2010-02-20 23:20 145841... | 14,052 | 273,408 | 2020-07-15 23:05:06 | 2,688,207 | 11 | 2010-04-22 04:14:51 | 312,172 | 2010-04-22 04:14:51 | https://stackoverflow.com/q/2674117 | https://stackoverflow.com/a/2688207 | <pre><code>DATE=$(s3cmd ls | sort -n | tail -n 1 | awk '{print $1}')
s3cmd ls | grep $DATE
</code></pre>
<p>sorting as a number schould put youngest dates last. Tail -n1 takes the last line, awk cuts the first word which is the date. Use that to get all entries of that date. </p>
<p>But maybe I didn't understand the... | <pre><code>DATE=$(s3cmd ls | sort -n | tail -n 1 | awk '{print $1}') s3cmd ls | grep $DATE </code></pre> <p>sorting as a number schould put youngest dates last. Tail -n1 takes the last line, awk cuts the first word which is the date. Use that to get all entries of that date. </p> <p>But maybe I didn't understand the... | 18, 134, 387, 3589 | bash, ls, regex, sorting | <h1>How to sort output of "s3cmd ls"</h1>
<p>Amazon "s3cmd ls" takes like this output:<br></p>
<pre><code>2010-02-20 21:01 1458414588 s3://file1.tgz.00<br>
2010-02-20 21:10 1458414527 s3://file1.tgz.01<br>
2010-02-20 22:01 1458414588 s3://file2.tgz.00<br>
2010-02-20 23:10 1458414527 s3://file... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,260 | bash | # How to sort output of "s3cmd ls"
Amazon "s3cmd ls" takes like this output:
```
2010-02-20 21:01 1458414588 s3://file1.tgz.00<br>
2010-02-20 21:10 1458414527 s3://file1.tgz.01<br>
2010-02-20 22:01 1458414588 s3://file2.tgz.00<br>
2010-02-20 23:10 1458414527 s3://file2.tgz.01<br>
2010-02-20 23:20 1458414588 ... | ```
DATE=$(s3cmd ls | sort -n | tail -n 1 | awk '{print $1}')
s3cmd ls | grep $DATE
```
sorting as a number schould put youngest dates last. Tail -n1 takes the last line, awk cuts the first word which is the date. Use that to get all entries of that date.
But maybe I didn't understand the question - so you have to re... |
2379514 | PowerShell, formatting values in another culture | 14 | 2010-03-04 13:21:58 | <p>Is there an easy way in PowerShell to format numbers and the like in another locale? I'm currently writing a few functions to ease SVG generation for me and SVG uses <code>.</code> as a decimal separator, while PowerShell honors my locale settings (<code>de-DE</code>) when converting floating-point numbers to string... | 24,642 | 73,070 | 2022-09-04 00:50:39 | 2,380,257 | 11 | 2010-03-04 15:04:28 | 153,982 | 2010-03-04 15:04:28 | https://stackoverflow.com/q/2379514 | https://stackoverflow.com/a/2380257 | <p>This is a PowerShell function I use for testing script in other cultures. I believe it could be used for what you are after:</p>
<pre><code>function Using-Culture ([System.Globalization.CultureInfo]$culture =(throw "USAGE: Using-Culture -Culture culture -Script {scriptblock}"),
[ScriptBlock]... | <p>This is a PowerShell function I use for testing script in other cultures. I believe it could be used for what you are after:</p> <pre><code>function Using-Culture ([System.Globalization.CultureInfo]$culture =(throw "USAGE: Using-Culture -Culture culture -Script {scriptblock}"), [ScriptBlock]... | 526, 1921, 33053 | locale, number-formatting, powershell | <h1>PowerShell, formatting values in another culture</h1>
<p>Is there an easy way in PowerShell to format numbers and the like in another locale? I'm currently writing a few functions to ease SVG generation for me and SVG uses <code>.</code> as a decimal separator, while PowerShell honors my locale settings (<code>de-D... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,261 | bash | # PowerShell, formatting values in another culture
Is there an easy way in PowerShell to format numbers and the like in another locale? I'm currently writing a few functions to ease SVG generation for me and SVG uses `.` as a decimal separator, while PowerShell honors my locale settings (`de-DE`) when converting float... | This is a PowerShell function I use for testing script in other cultures. I believe it could be used for what you are after:
```
function Using-Culture ([System.Globalization.CultureInfo]$culture =(throw "USAGE: Using-Culture -Culture culture -Script {scriptblock}"),
[ScriptBlock]$script=(throw... |
1355700 | Proper use of Invoke-Expression? | 14 | 2009-08-31 03:47:58 | <p>I've just recently completed my first nightly build script (first significant anything script, really) in powershell. I seem to have things working well, if not yet robustly (I haven't handled significant error-checking yet), but I found myself falling into an idiom around the <code>Invoke-Expression</code> cmdlet,... | 19,604 | 6,932 | 2011-11-28 00:12:32 | 1,355,829 | 11 | 2009-08-31 04:46:24 | 74,439 | 2011-11-28 00:12:32 | https://stackoverflow.com/q/1355700 | https://stackoverflow.com/a/1355829 | <p>Looks fine to me. Only thing I'd change is to use more Powershell features in place of fragile assumptions. E.g.:</p>
<ul>
<li><p>use Join-Path instead of string concatenation</p></li>
<li><p>use the <code>Env:\</code> provider to look up the <code>%programfiles(x86)%</code> dir (or better yet, use the <code>HKML... | <p>Looks fine to me. Only thing I'd change is to use more Powershell features in place of fragile assumptions. E.g.:</p> <ul> <li><p>use Join-Path instead of string concatenation</p></li> <li><p>use the <code>Env:\</code> provider to look up the <code>%programfiles(x86)%</code> dir (or better yet, use the <code>HKML... | 526, 531 | powershell, scripting | <h1>Proper use of Invoke-Expression?</h1>
<p>I've just recently completed my first nightly build script (first significant anything script, really) in powershell. I seem to have things working well, if not yet robustly (I haven't handled significant error-checking yet), but I found myself falling into an idiom around ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,262 | bash | # Proper use of Invoke-Expression?
I've just recently completed my first nightly build script (first significant anything script, really) in powershell. I seem to have things working well, if not yet robustly (I haven't handled significant error-checking yet), but I found myself falling into an idiom around the `Invok... | Looks fine to me. Only thing I'd change is to use more Powershell features in place of fragile assumptions. E.g.:
- use Join-Path instead of string concatenation
- use the `Env:\` provider to look up the `%programfiles(x86)%` dir (or better yet, use the `HKML:\` provider to find the path - it's in SOFTWARE\Microsoft\V... |
58313106 | Create RS256 JWT in bash | 13 | 2019-10-09 22:30:59 | <p>I'm trying to construct an RS256 JWT token using only bash and openSSL (I have limited development tools at my disposal).</p>
<p>I've devised a script which takes the header and payload from txt files (stripping out newlines etc), base-64URL encodes them and concatenates them together with a '.' separator.</p>
<p>... | 13,070 | 1,125,133 | 2020-06-29 21:15:36 | 58,326,090 | 11 | 2019-10-10 15:10:48 | 1,125,133 | 2019-10-10 15:10:48 | https://stackoverflow.com/q/58313106 | https://stackoverflow.com/a/58326090 | <p>Successfully resolved this. It was caused by a couple of issues:</p>
<ol>
<li>openssl base64 inserts carriage returns every 70-odd characters by default. I believe you can override this, but just using the <code>base64</code> command instead solved that.</li>
<li><p>My signing step was wrong. I replaced <code>rs... | <p>Successfully resolved this. It was caused by a couple of issues:</p> <ol> <li>openssl base64 inserts carriage returns every 70-odd characters by default. I believe you can override this, but just using the <code>base64</code> command instead solved that.</li> <li><p>My signing step was wrong. I replaced <code>rs... | 369, 387, 1999, 65223 | bash, jwt, macos, openssl | <h1>Create RS256 JWT in bash</h1>
<p>I'm trying to construct an RS256 JWT token using only bash and openSSL (I have limited development tools at my disposal).</p>
<p>I've devised a script which takes the header and payload from txt files (stripping out newlines etc), base-64URL encodes them and concatenates them toget... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,263 | bash | # Create RS256 JWT in bash
I'm trying to construct an RS256 JWT token using only bash and openSSL (I have limited development tools at my disposal).
I've devised a script which takes the header and payload from txt files (stripping out newlines etc), base-64URL encodes them and concatenates them together with a '.' s... | Successfully resolved this. It was caused by a couple of issues:
1. openssl base64 inserts carriage returns every 70-odd characters by default. I believe you can override this, but just using the `base64` command instead solved that.
2. My signing step was wrong. I replaced `rsautl` with `dgst` as follows:
openssl... |
54383290 | Jenkins "file not found" error with existing Bash script | 13 | 2019-01-26 22:13:00 | <p>My goal is to have Jenkins 2 execute alpha integration tests between an express js app and a postgres db. I am to spin up containerized resources locally and test successfully with bash scripts that employ <code>docker-compose</code>. The relevant bash script is <code>scripts/docker/dockerRunTest.sh</code>.</p>
<p>... | 12,521 | 4,723,005 | 2019-11-11 12:55:58 | 54,389,281 | 11 | 2019-01-27 14:39:20 | 1,421,222 | 2019-01-27 17:01:06 | https://stackoverflow.com/q/54383290 | https://stackoverflow.com/a/54389281 | <p><code>tmaier/docker-compose</code> image doesn't have <code>/bin/bash</code> interpreter installed by default since <code>latest</code> tag is an <code>alpine</code> image [1, 2]. This can be confirmed by running:</p>
<pre><code>$ docker run -it --rm tmaier/docker-compose bash
/usr/local/bin/docker-entrypoint.sh: e... | <p><code>tmaier/docker-compose</code> image doesn't have <code>/bin/bash</code> interpreter installed by default since <code>latest</code> tag is an <code>alpine</code> image [1, 2]. This can be confirmed by running:</p> <pre><code>$ docker run -it --rm tmaier/docker-compose bash /usr/local/bin/docker-entrypoint.sh: e... | 387, 64999, 90304, 110604 | bash, docker, docker-compose, jenkins | <h1>Jenkins "file not found" error with existing Bash script</h1>
<p>My goal is to have Jenkins 2 execute alpha integration tests between an express js app and a postgres db. I am to spin up containerized resources locally and test successfully with bash scripts that employ <code>docker-compose</code>. The relevant bas... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,264 | bash | # Jenkins "file not found" error with existing Bash script
My goal is to have Jenkins 2 execute alpha integration tests between an express js app and a postgres db. I am to spin up containerized resources locally and test successfully with bash scripts that employ `docker-compose`. The relevant bash script is `scripts... | `tmaier/docker-compose` image doesn't have `/bin/bash` interpreter installed by default since `latest` tag is an `alpine` image [1, 2]. This can be confirmed by running:
```
$ docker run -it --rm tmaier/docker-compose bash
/usr/local/bin/docker-entrypoint.sh: exec: line 35: bash: not found
```
To get the script worki... |
48119289 | How to get environment variables in live Heroku dyno | 13 | 2018-01-05 18:28:14 | <p>There is a <code>heroku config</code> command but that apparently just shows me what the current setting is. I want to confirm in a dyno what my application is actually seeing in the running environment.</p>
<p>I tried <code>heroku ps:exec -a <app> -d <dyno_instance> --ssh env</code>and this has some ge... | 5,966 | 2,340,636 | 2021-03-13 21:41:36 | 48,750,460 | 11 | 2018-02-12 15:56:49 | 5,955,911 | 2018-02-12 15:56:49 | https://stackoverflow.com/q/48119289 | https://stackoverflow.com/a/48750460 | <p>Try <code>heroku run env</code> instead. </p>
<p>According to the <a href="https://devcenter.heroku.com/articles/exec#environment-variables" rel="noreferrer">documentation</a>:
"The SSH session created by Heroku Exec will not have the config vars set as environment variables (i.e., env in a session will not list c... | <p>Try <code>heroku run env</code> instead. </p> <p>According to the <a href="https://devcenter.heroku.com/articles/exec#environment-variables" rel="noreferrer">documentation</a>: "The SSH session created by Heroku Exec will not have the config vars set as environment variables (i.e., env in a session will not list c... | 387, 8279 | bash, heroku | <h1>How to get environment variables in live Heroku dyno</h1>
<p>There is a <code>heroku config</code> command but that apparently just shows me what the current setting is. I want to confirm in a dyno what my application is actually seeing in the running environment.</p>
<p>I tried <code>heroku ps:exec -a <app>... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,265 | bash | # How to get environment variables in live Heroku dyno
There is a `heroku config` command but that apparently just shows me what the current setting is. I want to confirm in a dyno what my application is actually seeing in the running environment.
I tried `heroku ps:exec -a <app> -d <dyno_instance> --ssh env`and this... | Try `heroku run env` instead.
According to the [documentation](https://devcenter.heroku.com/articles/exec#environment-variables):
"The SSH session created by Heroku Exec will not have the config vars set as environment variables (i.e., env in a session will not list config vars set by `heroku config:set`)." |
46946888 | What happens when reading into a variable in a pipeline? | 13 | 2017-10-26 06:03:56 | <pre><code>echo hello | read str
echo $str
</code></pre>
<p>This <code>read</code> is executed after the pipeline, which means that the output of the <code>echo</code> gets read into <code>str</code> - but because it is after a pipe, the contents of <code>str</code> are now in a subshell that cannot be read by the pare... | 1,956 | 824,282 | 2021-12-27 05:03:39 | 46,947,363 | 11 | 2017-10-26 06:36:02 | 2,088,135 | 2017-10-26 06:36:02 | https://stackoverflow.com/q/46946888 | https://stackoverflow.com/a/46947363 | <p>In your example, <code>$str</code> exists inside a subshell and by default, it disappears once the line has finished. A child process cannot modify its parent.</p>
<p>Aside from changing the shell option <code>lastpipe</code>, you can also change the code to avoid using a pipe. In this case, you could use:</p>
<pr... | <p>In your example, <code>$str</code> exists inside a subshell and by default, it disappears once the line has finished. A child process cannot modify its parent.</p> <p>Aside from changing the shell option <code>lastpipe</code>, you can also change the code to avoid using a pipe. In this case, you could use:</p> <pr... | 387, 2844, 57788 | bash, pipeline, subshell | <h1>What happens when reading into a variable in a pipeline?</h1>
<pre><code>echo hello | read str
echo $str
</code></pre>
<p>This <code>read</code> is executed after the pipeline, which means that the output of the <code>echo</code> gets read into <code>str</code> - but because it is after a pipe, the contents of <cod... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,266 | bash | # What happens when reading into a variable in a pipeline?
```
echo hello | read str
echo $str
```
This `read` is executed after the pipeline, which means that the output of the `echo` gets read into `str` - but because it is after a pipe, the contents of `str` are now in a subshell that cannot be read by the parent ... | In your example, `$str` exists inside a subshell and by default, it disappears once the line has finished. A child process cannot modify its parent.
Aside from changing the shell option `lastpipe`, you can also change the code to avoid using a pipe. In this case, you could use:
```
read str < <(your command)
# or
st... |
18302856 | Removing files interactively with find and xargs | 13 | 2013-08-18 19:24:38 | <p>I'm trying to pipe some files from the find command to the interactive remove command, so that I can double check the files I'm removing, but I've run into some trouble.</p>
<pre><code>find -name '#*#' -print0 | xargs -0 rm -i
</code></pre>
<p>I thought the above would work, but instead I just get a string of <cod... | 9,473 | 2,007,537 | 2021-10-27 11:04:45 | 42,119,953 | 11 | 2017-02-08 17:36:45 | 423,105 | 2018-07-09 14:48:05 | https://stackoverflow.com/q/18302856 | https://stackoverflow.com/a/42119953 | <blockquote>
<p><em>Can someone explain to me what's exactly is happening,</em></p>
</blockquote>
<p>As the <a href="http://man7.org/linux/man-pages/man1/xargs.1.html" rel="noreferrer">man page for xargs</a> says (under the <code>-a</code> option): "If you use this option, stdin remains unchanged <strong>when comman... | <blockquote> <p><em>Can someone explain to me what's exactly is happening,</em></p> </blockquote> <p>As the <a href="http://man7.org/linux/man-pages/man1/xargs.1.html" rel="noreferrer">man page for xargs</a> says (under the <code>-a</code> option): "If you use this option, stdin remains unchanged <strong>when comman... | 390, 5610, 10326 | rm, shell, xargs | <h1>Removing files interactively with find and xargs</h1>
<p>I'm trying to pipe some files from the find command to the interactive remove command, so that I can double check the files I'm removing, but I've run into some trouble.</p>
<pre><code>find -name '#*#' -print0 | xargs -0 rm -i
</code></pre>
<p>I thought the... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,267 | bash | # Removing files interactively with find and xargs
I'm trying to pipe some files from the find command to the interactive remove command, so that I can double check the files I'm removing, but I've run into some trouble.
```
find -name '#*#' -print0 | xargs -0 rm -i
```
I thought the above would work, but instead I ... | > *Can someone explain to me what's exactly is happening,*
As the [man page for xargs](http://man7.org/linux/man-pages/man1/xargs.1.html) says (under the `-a` option): "If you use this option, stdin remains unchanged **when commands are run**.
Otherwise, **stdin is redirected from /dev/null**."
Since you're not using... |
40455673 | Using Windows Subsystem for Linux (WSL) from Sublime Text | 13 | 2016-11-06 23:18:30 | <p>I wanted to use <code>gcc</code>, <code>g++</code> and <code>make</code> from Sublime Text to be able to compile C and C++ code to Linux runnables on Windows. I couldn't run <code>bash.exe</code> from Sublime Text, as many other users on Stack Overflow.</p>
| 19,353 | 3,137,420 | 2025-02-24 07:20:37 | 40,458,143 | 11 | 2016-11-07 05:02:03 | 3,137,420 | 2019-02-12 14:19:21 | https://stackoverflow.com/q/40455673 | https://stackoverflow.com/a/40458143 | <ol>
<li><p>You have to copy the <code>C:\Windows\System32\bash.exe</code> file to the <code>C:\Windows\SysWOW64\</code> directory.
Required because of the <a href="https://msdn.microsoft.com/es-es/library/windows/desktop/aa384187(v=vs.85).aspx" rel="noreferrer">WoW64 file system redirection</a> (Thanks <a href="https:... | <ol> <li><p>You have to copy the <code>C:\Windows\System32\bash.exe</code> file to the <code>C:\Windows\SysWOW64\</code> directory. Required because of the <a href="https://msdn.microsoft.com/es-es/library/windows/desktop/aa384187(v=vs.85).aspx" rel="noreferrer">WoW64 file system redirection</a> (Thanks <a href="https:... | 58, 64, 387, 72788, 119526 | bash, linux, sublimetext, windows, windows-subsystem-for-linux | <h1>Using Windows Subsystem for Linux (WSL) from Sublime Text</h1>
<p>I wanted to use <code>gcc</code>, <code>g++</code> and <code>make</code> from Sublime Text to be able to compile C and C++ code to Linux runnables on Windows. I couldn't run <code>bash.exe</code> from Sublime Text, as many other users on Stack Overfl... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,268 | bash | # Using Windows Subsystem for Linux (WSL) from Sublime Text
I wanted to use `gcc`, `g++` and `make` from Sublime Text to be able to compile C and C++ code to Linux runnables on Windows. I couldn't run `bash.exe` from Sublime Text, as many other users on Stack Overflow. | 1. You have to copy the `C:\Windows\System32\bash.exe` file to the `C:\Windows\SysWOW64\` directory.
Required because of the [WoW64 file system redirection](https://msdn.microsoft.com/es-es/library/windows/desktop/aa384187(v=vs.85).aspx) (Thanks [Martin](https://stackoverflow.com/questions/40455673/using-windows-sub... |
39104275 | Replace a character with new line | 13 | 2016-08-23 14:43:20 | <p><code>Powershell ver 4. Windows 7</code></p>
<p>I wanted to replace <code>,</code> with new lines in a text file. I tried the script below</p>
<pre><code>(Get-Content C:\Test\test.txt).Replace(',','`n') | Set-Content C:\Test\testv2.txt
</code></pre>
<p>but when I see the output file I see <code>,</code> replaced ... | 31,085 | 6,748,422 | 2018-02-23 06:15:04 | 39,104,508 | 11 | 2016-08-23 14:54:11 | 5,615,788 | 2016-08-23 14:54:11 | https://stackoverflow.com/q/39104275 | https://stackoverflow.com/a/39104508 | <p>Try this:</p>
<pre><code>[IO.File]::ReadAllText(C:\Test\test.txt) -replace ',',"`r`n" | Out-File C:\Test\testv2.txt
</code></pre>
<p>P.S. Sorry that don't have time to explain it, now.</p>
| <p>Try this:</p> <pre><code>[IO.File]::ReadAllText(C:\Test\test.txt) -replace ',',"`r`n" | Out-File C:\Test\testv2.txt </code></pre> <p>P.S. Sorry that don't have time to explain it, now.</p> | 526, 95686 | powershell, powershell-4.0 | <h1>Replace a character with new line</h1>
<p><code>Powershell ver 4. Windows 7</code></p>
<p>I wanted to replace <code>,</code> with new lines in a text file. I tried the script below</p>
<pre><code>(Get-Content C:\Test\test.txt).Replace(',','`n') | Set-Content C:\Test\testv2.txt
</code></pre>
<p>but when I see the... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,269 | bash | # Replace a character with new line
`Powershell ver 4. Windows 7`
I wanted to replace `,` with new lines in a text file. I tried the script below
```
(Get-Content C:\Test\test.txt).Replace(',','`n') | Set-Content C:\Test\testv2.txt
```
but when I see the output file I see `,` replaced with '`n' instead of new line.... | Try this:
```
[IO.File]::ReadAllText(C:\Test\test.txt) -replace ',',"`r`n" | Out-File C:\Test\testv2.txt
```
P.S. Sorry that don't have time to explain it, now. |
35212701 | How can I display unique words contained in a Bash string? | 13 | 2016-02-04 22:14:34 | <p>I have a string that has duplicate words. I would like to display only the unique words. The string is:</p>
<pre><code>variable="alpha bravo charlie alpha delta echo charlie"
</code></pre>
<p>I know several tools that can do this together. This is what I figured out:</p>
<pre><code>echo $variable | tr " " "\n" | ... | 14,130 | 4,515,565 | 2023-06-30 04:41:48 | 35,214,172 | 11 | 2016-02-05 00:16:15 | 1,301,972 | 2016-02-05 01:13:07 | https://stackoverflow.com/q/35212701 | https://stackoverflow.com/a/35214172 | <h2>Use a Bash Substitution Expansion</h2>
<p>The following <a href="https://www.gnu.org/software/bash/manual/html_node/Shell-Parameter-Expansion.html#Shell-Parameter-Expansion" rel="noreferrer">shell parameter expansion</a> will substitute spaces with newlines, and then pass the results into the <em>sort</em> utility... | <h2>Use a Bash Substitution Expansion</h2> <p>The following <a href="https://www.gnu.org/software/bash/manual/html_node/Shell-Parameter-Expansion.html#Shell-Parameter-Expansion" rel="noreferrer">shell parameter expansion</a> will substitute spaces with newlines, and then pass the results into the <em>sort</em> utility... | 58, 139, 387, 12147 | bash, duplicates, linux, string | <h1>How can I display unique words contained in a Bash string?</h1>
<p>I have a string that has duplicate words. I would like to display only the unique words. The string is:</p>
<pre><code>variable="alpha bravo charlie alpha delta echo charlie"
</code></pre>
<p>I know several tools that can do this together. This is... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,270 | bash | # How can I display unique words contained in a Bash string?
I have a string that has duplicate words. I would like to display only the unique words. The string is:
```
variable="alpha bravo charlie alpha delta echo charlie"
```
I know several tools that can do this together. This is what I figured out:
```
echo $v... | ## Use a Bash Substitution Expansion
The following [shell parameter expansion](https://www.gnu.org/software/bash/manual/html_node/Shell-Parameter-Expansion.html#Shell-Parameter-Expansion) will substitute spaces with newlines, and then pass the results into the *sort* utility to return only the unique words.
```
$ ech... |
34340706 | Incorrect results with bash process substitution and tail? | 13 | 2015-12-17 17:27:29 | <p>Using bash process substitution, I want to run two different commands on a file simultaneously. In this example it is not necessary but imagine that "cat /usr/share/dict/words" was a very expensive operation such as uncompressing a 50gb file.</p>
<pre><code>cat /usr/share/dict/words | tee >(head -1 > h.txt) ... | 769 | 1,218,704 | 2017-11-13 15:51:57 | 34,342,525 | 11 | 2015-12-17 19:17:59 | 4,687,135 | 2017-11-13 15:51:57 | https://stackoverflow.com/q/34340706 | https://stackoverflow.com/a/34342525 | <p>Ok, what seems to happen is that once the <code>head -1</code> command finishes it exits and that causes <code>tee</code> to get a SIGPIPE it tries to write to the named pipe that the process substitution setup which generates an <code>EPIPE</code> and according to <code>man 2 write</code> will also generate <code>S... | <p>Ok, what seems to happen is that once the <code>head -1</code> command finishes it exits and that causes <code>tee</code> to get a SIGPIPE it tries to write to the named pipe that the process substitution setup which generates an <code>EPIPE</code> and according to <code>man 2 write</code> will also generate <code>S... | 387, 5813, 7896, 22055 | bash, pipe, tail, tee | <h1>Incorrect results with bash process substitution and tail?</h1>
<p>Using bash process substitution, I want to run two different commands on a file simultaneously. In this example it is not necessary but imagine that "cat /usr/share/dict/words" was a very expensive operation such as uncompressing a 50gb file.</p>
... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,271 | bash | # Incorrect results with bash process substitution and tail?
Using bash process substitution, I want to run two different commands on a file simultaneously. In this example it is not necessary but imagine that "cat /usr/share/dict/words" was a very expensive operation such as uncompressing a 50gb file.
```
cat /usr/s... | Ok, what seems to happen is that once the `head -1` command finishes it exits and that causes `tee` to get a SIGPIPE it tries to write to the named pipe that the process substitution setup which generates an `EPIPE` and according to `man 2 write` will also generate `SIGPIPE` in the writing process, which causes `tee` t... |
34012095 | How to rename an annotated tag in Git | 13 | 2015-12-01 03:30:45 | <p>How can an existing annotated tag be renamed in Git?</p>
<p>I have almost a hundred tags representing version numbers on a repository, and each tag is annotated with a useful description about what was changed that version. I'd like to change the naming style I've used for these tags, and recording the tag message,... | 7,822 | 1,772,838 | 2017-01-16 13:46:58 | 34,012,542 | 11 | 2015-12-01 04:20:29 | 1,256,452 | 2015-12-01 05:40:47 | https://stackoverflow.com/q/34012095 | https://stackoverflow.com/a/34012542 | <p>The bad news is that the name of an annotated tag object is embedded inside that annotated tag object. So if you want to be totally thorough, you'll need to replace those tag objects:</p>
<ul>
<li><p>If they're <em>signed</em> tags you will need to regenerate them with new signatures.</p></li>
<li><p>Otherwise, it... | <p>The bad news is that the name of an annotated tag object is embedded inside that annotated tag object. So if you want to be totally thorough, you'll need to replace those tag objects:</p> <ul> <li><p>If they're <em>signed</em> tags you will need to regenerate them with new signatures.</p></li> <li><p>Otherwise, it... | 115, 119, 61874 | git, git-bash, tags | <h1>How to rename an annotated tag in Git</h1>
<p>How can an existing annotated tag be renamed in Git?</p>
<p>I have almost a hundred tags representing version numbers on a repository, and each tag is annotated with a useful description about what was changed that version. I'd like to change the naming style I've used... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,272 | bash | # How to rename an annotated tag in Git
How can an existing annotated tag be renamed in Git?
I have almost a hundred tags representing version numbers on a repository, and each tag is annotated with a useful description about what was changed that version. I'd like to change the naming style I've used for these tags,... | The bad news is that the name of an annotated tag object is embedded inside that annotated tag object. So if you want to be totally thorough, you'll need to replace those tag objects:
- If they're *signed* tags you will need to regenerate them with new signatures.
- Otherwise, it's possible to copy the tag objects to ... |
32069885 | Exit tcsh script if error | 13 | 2015-08-18 10:30:11 | <p>I am tryin to write a tcsh script.
I need the script exit if any of its commands fails. </p>
<p>In shell I use <code>set -e</code> but I don't know its equivalent in tcsh</p>
<pre><code>#!/usr/bin/env tcsh
set NAME=aaaa
set VERSION=6.1
#set -e equivalent
#do somthing
</code></pre>
<p>Thanks </p>
| 11,823 | 1,955,287 | 2017-02-17 15:03:33 | 32,073,958 | 11 | 2015-08-18 13:34:45 | 660,921 | 2017-02-17 15:03:33 | https://stackoverflow.com/q/32069885 | https://stackoverflow.com/a/32073958 | <p>In (t)csh, <code>set</code> is used to define a variable; <code>set foo = bar</code> will assign the value <code>bar</code> to the variable <code>foo</code> (like <code>foo=bar</code> does in Bourne shell scripting).</p>
<p>In any case, from <code>tcsh(1)</code>:</p>
<pre><code>Argument list processing
If the f... | <p>In (t)csh, <code>set</code> is used to define a variable; <code>set foo = bar</code> will assign the value <code>bar</code> to the variable <code>foo</code> (like <code>foo=bar</code> does in Bourne shell scripting).</p> <p>In any case, from <code>tcsh(1)</code>:</p> <pre><code>Argument list processing If the f... | 390, 8599 | shell, tcsh | <h1>Exit tcsh script if error</h1>
<p>I am tryin to write a tcsh script.
I need the script exit if any of its commands fails. </p>
<p>In shell I use <code>set -e</code> but I don't know its equivalent in tcsh</p>
<pre><code>#!/usr/bin/env tcsh
set NAME=aaaa
set VERSION=6.1
#set -e equivalent
#do somthing
</code></... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,273 | bash | # Exit tcsh script if error
I am tryin to write a tcsh script.
I need the script exit if any of its commands fails.
In shell I use `set -e` but I don't know its equivalent in tcsh
```
#!/usr/bin/env tcsh
set NAME=aaaa
set VERSION=6.1
#set -e equivalent
#do somthing
```
Thanks | In (t)csh, `set` is used to define a variable; `set foo = bar` will assign the value `bar` to the variable `foo` (like `foo=bar` does in Bourne shell scripting).
In any case, from `tcsh(1)`:
```
Argument list processing
If the first argument (argument 0) to the shell is `-' then it is a
login shell. A logi... |
30656618 | AWS Powershell to retrieve AWS account number | 13 | 2015-06-05 00:52:59 | <p>Does anyone know how to get AWS account number using AWS Powershell? Doesn't look like there's an API available for that.</p>
| 7,662 | 4,625,498 | 2021-10-08 07:28:37 | 30,656,826 | 11 | 2015-06-05 01:18:07 | 775,544 | 2015-06-05 01:18:07 | https://stackoverflow.com/q/30656618 | https://stackoverflow.com/a/30656826 | <p>Not directly. However, your Account ID is a part of the <a href="http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html" rel="noreferrer">Arn</a> of resources that you create... and those that are automatically created for you. Some resources will also list you as an OwnerId. </p>
<p>The <a hre... | <p>Not directly. However, your Account ID is a part of the <a href="http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html" rel="noreferrer">Arn</a> of resources that you create... and those that are automatically created for you. Some resources will also list you as an OwnerId. </p> <p>The <a hre... | 526, 33388, 100823 | amazon-web-services, aws-powershell, powershell | <h1>AWS Powershell to retrieve AWS account number</h1>
<p>Does anyone know how to get AWS account number using AWS Powershell? Doesn't look like there's an API available for that.</p>
| q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 11,274 | bash | # AWS Powershell to retrieve AWS account number
Does anyone know how to get AWS account number using AWS Powershell? Doesn't look like there's an API available for that. | Not directly. However, your Account ID is a part of the [Arn](http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html) of resources that you create... and those that are automatically created for you. Some resources will also list you as an OwnerId.
The [Default Security Group](http://docs.aws.amazon... |
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