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38316001 | How do I combine two arrays into a third array? | 7 | 2016-07-11 20:50:54 | <p>I have two arrays: <code>array1</code> and <code>array2</code>:</p>
<pre><code>array1=( a b c )
array2=( 1 2 3 )
</code></pre>
<p>How do I make a third array, <code>array3</code>:</p>
<pre><code>array3=( a b c 1 2 3 )
</code></pre>
<p>This question is different from <a href="https://stackoverflow.com/questions/61805... | 14,550 | 9,636 | 2024-07-11 15:18:42 | 38,316,002 | 13 | 2016-07-11 20:50:54 | 9,636 | 2023-08-02 22:09:34 | https://stackoverflow.com/q/38316001 | https://stackoverflow.com/a/38316002 | <p>From <a href="http://tldp.org/LDP/abs/html/arrays.html#ARRAYAPPEND" rel="noreferrer">The Advanced Bash Scripting Guide example 27-10</a>, with a correction:</p>
<pre><code>declare -a array1=( zero1 one1 two1 )
declare -a array2=( [0]=zero2 [2]=two2 [3]=three2 )
dest=( "${array1[@]}" "${array2[@]}"... | <p>From <a href="http://tldp.org/LDP/abs/html/arrays.html#ARRAYAPPEND" rel="noreferrer">The Advanced Bash Scripting Guide example 27-10</a>, with a correction:</p> <pre><code>declare -a array1=( zero1 one1 two1 ) declare -a array2=( [0]=zero2 [2]=two2 [3]=three2 ) dest=( "${array1[@]}" "${array2[@]}"... | 114, 387, 6050 | arrays, bash, concatenation | <h1>How do I combine two arrays into a third array?</h1>
<p>I have two arrays: <code>array1</code> and <code>array2</code>:</p>
<pre><code>array1=( a b c )
array2=( 1 2 3 )
</code></pre>
<p>How do I make a third array, <code>array3</code>:</p>
<pre><code>array3=( a b c 1 2 3 )
</code></pre>
<p>This question is differen... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,470 | bash | # How do I combine two arrays into a third array?
I have two arrays: `array1` and `array2`:
```
array1=( a b c )
array2=( 1 2 3 )
```
How do I make a third array, `array3`:
```
array3=( a b c 1 2 3 )
```
This question is different from [Combine arrays in the beginning of a for-loop (Bash)](https://stackoverflow.co... | From [The Advanced Bash Scripting Guide example 27-10](http://tldp.org/LDP/abs/html/arrays.html#ARRAYAPPEND), with a correction:
```
declare -a array1=( zero1 one1 two1 )
declare -a array2=( [0]=zero2 [2]=two2 [3]=three2 )
dest=( "${array1[@]}" "${array2[@]}" )
echo "${dest[@]}"
zero1 one1 two1 zero2 two2 three2
```
... |
37904757 | Get shortpath using powershell | 7 | 2016-06-19 07:02:36 | <p>I am trying to get shortpath using the below code in powershell. For some folders it works. For some it does not work. </p>
<pre><code>$a = New-Object -ComObject Scripting.FileSystemObject
$f = $a.GetFile("C:\Program Files\Internet Explorer")
$f.ShortPath
</code></pre>
<p>I get the below error although the folde... | 6,050 | 3,180,704 | 2025-01-09 18:05:27 | 37,904,822 | 13 | 2016-06-19 07:11:51 | 3,439,404 | 2016-06-19 07:11:51 | https://stackoverflow.com/q/37904757 | https://stackoverflow.com/a/37904822 | <p>Distinguish <em>files</em> and <em>folders</em>:</p>
<pre><code>$a = New-Object -ComObject Scripting.FileSystemObject
$f = $a.GetFile("C:\Program Files\Internet Explorer\iexplore.exe")
$f.ShortPath
$f = $a.GetFolder("C:\Program Files\Internet Explorer")
$f.ShortPath
</code></pre>
<p>Output:</p>
<pre><code>C:\P... | <p>Distinguish <em>files</em> and <em>folders</em>:</p> <pre><code>$a = New-Object -ComObject Scripting.FileSystemObject $f = $a.GetFile("C:\Program Files\Internet Explorer\iexplore.exe") $f.ShortPath $f = $a.GetFolder("C:\Program Files\Internet Explorer") $f.ShortPath </code></pre> <p>Output:</p> <pre><code>C:\P... | 526 | powershell | <h1>Get shortpath using powershell</h1>
<p>I am trying to get shortpath using the below code in powershell. For some folders it works. For some it does not work. </p>
<pre><code>$a = New-Object -ComObject Scripting.FileSystemObject
$f = $a.GetFile("C:\Program Files\Internet Explorer")
$f.ShortPath
</code></pre>
<p>... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,471 | bash | # Get shortpath using powershell
I am trying to get shortpath using the below code in powershell. For some folders it works. For some it does not work.
```
$a = New-Object -ComObject Scripting.FileSystemObject
$f = $a.GetFile("C:\Program Files\Internet Explorer")
$f.ShortPath
```
I get the below error although the... | Distinguish *files* and *folders*:
```
$a = New-Object -ComObject Scripting.FileSystemObject
$f = $a.GetFile("C:\Program Files\Internet Explorer\iexplore.exe")
$f.ShortPath
$f = $a.GetFolder("C:\Program Files\Internet Explorer")
$f.ShortPath
```
Output:
```
C:\PROGRA~1\INTERN~1\iexplore.exe
C:\PROGRA~1\INTERN~1
`... |
37672417 | Getting kernel version from the compressed kernel image | 7 | 2016-06-07 06:53:30 | <p>I am working on a shell script. I have a pre-built zImage. is it possible to know the kernel version from which this zImage was created?</p>
<p>I have tried with the commands updated @ <a href="https://stackoverflow.com/questions/9535227/getting-uname-information-from-a-compressed-kernel-image">Getting uname inform... | 21,249 | 4,266,488 | 2021-12-16 04:13:59 | 37,689,814 | 13 | 2016-06-07 21:37:29 | 3,866,447 | 2016-06-07 21:37:29 | https://stackoverflow.com/q/37672417 | https://stackoverflow.com/a/37689814 | <h1>Check kernel compression algorithm</h1>
<p>Most likely your <code>zImage</code> was compressed using LZMA compressor. You can check it in next files:</p>
<ul>
<li>in <code>.config</code> file (if you built kernel by yourself)</li>
<li>in <code>/boot/config-`uname -r`</code> file (if you are using your distributio... | <h1>Check kernel compression algorithm</h1> <p>Most likely your <code>zImage</code> was compressed using LZMA compressor. You can check it in next files:</p> <ul> <li>in <code>.config</code> file (if you built kernel by yourself)</li> <li>in <code>/boot/config-`uname -r`</code> file (if you are using your distributio... | 58, 390, 21990, 28643 | embedded-linux, linux, linux-kernel, shell | <h1>Getting kernel version from the compressed kernel image</h1>
<p>I am working on a shell script. I have a pre-built zImage. is it possible to know the kernel version from which this zImage was created?</p>
<p>I have tried with the commands updated @ <a href="https://stackoverflow.com/questions/9535227/getting-uname... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,472 | bash | # Getting kernel version from the compressed kernel image
I am working on a shell script. I have a pre-built zImage. is it possible to know the kernel version from which this zImage was created?
I have tried with the commands updated @ [Getting uname information from a compressed kernel image](https://stackoverflow.c... | # Check kernel compression algorithm
Most likely your `zImage` was compressed using LZMA compressor. You can check it in next files:
- in `.config` file (if you built kernel by yourself)
- in `` /boot/config-`uname -r` `` file (if you are using your distribution)
- in `/proc/config.gz` file (if `CONFIG_IKCONFIG_PROC`... |
36316040 | Exit a bash script if an error occurs in it or any of the background jobs it creates | 7 | 2016-03-30 17:46:35 | <p><strong>Background</strong></p>
<p>I'm working on a bash script to automate the process of building half a dozen projects that live in the same directory. Each project has two scripts to run in order to build it:</p>
<pre><code>npm install
npm run build
</code></pre>
<p>The first line will fetch all of the depend... | 5,006 | 2,193,290 | 2016-03-30 19:50:11 | 36,316,357 | 13 | 2016-03-30 18:02:46 | 14,122 | 2016-03-30 19:42:25 | https://stackoverflow.com/q/36316040 | https://stackoverflow.com/a/36316357 | <p>Collect the PIDs for the background jobs; then, use <code>wait</code> to collect the exit status of each, exiting the first time any PID polled over in that loop is nonzero.</p>
<pre><code>install_pids=( )
for dir in ./projects/**/; do
(cd "$dir" && exec npm install) & install_pids+=( $! )
done
for pi... | <p>Collect the PIDs for the background jobs; then, use <code>wait</code> to collect the exit status of each, exiting the first time any PID polled over in that loop is nonzero.</p> <pre><code>install_pids=( ) for dir in ./projects/**/; do (cd "$dir" && exec npm install) & install_pids+=( $! ) done for pi... | 387, 390, 1783, 61387 | bash, build-process, npm, shell | <h1>Exit a bash script if an error occurs in it or any of the background jobs it creates</h1>
<p><strong>Background</strong></p>
<p>I'm working on a bash script to automate the process of building half a dozen projects that live in the same directory. Each project has two scripts to run in order to build it:</p>
<pre... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,473 | bash | # Exit a bash script if an error occurs in it or any of the background jobs it creates
**Background**
I'm working on a bash script to automate the process of building half a dozen projects that live in the same directory. Each project has two scripts to run in order to build it:
```
npm install
npm run build
```
Th... | Collect the PIDs for the background jobs; then, use `wait` to collect the exit status of each, exiting the first time any PID polled over in that loop is nonzero.
```
install_pids=( )
for dir in ./projects/**/; do
(cd "$dir" && exec npm install) & install_pids+=( $! )
done
for pid in "${install_pids[@]}"; do
wait ... |
35820818 | How do I go to the next command in Git Bash after using git log? | 7 | 2016-03-05 22:43:07 | <p>When using Git Bash, I type the command:</p>
<pre><code>git log
</code></pre>
<p>It shows me all the logs. But now I want to do a second command. So I hold the down arrow to get to the bottom of the logs and it just says <code>(END)</code>. How do I get to the next line so I can enter my next command?</p>
| 8,237 | 3,010,223 | 2016-03-06 06:45:29 | 35,820,935 | 13 | 2016-03-05 22:55:08 | 216,074 | 2016-03-05 22:55:08 | https://stackoverflow.com/q/35820818 | https://stackoverflow.com/a/35820935 | <p>By default, Git commands that display a lot of information will show the information through a different program, called <a href="https://en.wikipedia.org/wiki/Terminal_pager" rel="noreferrer">terminal pager</a>. These programs basically show you the information in pages, so that you can see everything and not only ... | <p>By default, Git commands that display a lot of information will show the information through a different program, called <a href="https://en.wikipedia.org/wiki/Terminal_pager" rel="noreferrer">terminal pager</a>. These programs basically show you the information in pages, so that you can see everything and not only ... | 119, 47913, 61874 | git, git-bash, git-log | <h1>How do I go to the next command in Git Bash after using git log?</h1>
<p>When using Git Bash, I type the command:</p>
<pre><code>git log
</code></pre>
<p>It shows me all the logs. But now I want to do a second command. So I hold the down arrow to get to the bottom of the logs and it just says <code>(END)</code>. ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,474 | bash | # How do I go to the next command in Git Bash after using git log?
When using Git Bash, I type the command:
```
git log
```
It shows me all the logs. But now I want to do a second command. So I hold the down arrow to get to the bottom of the logs and it just says `(END)`. How do I get to the next line so I can enter... | By default, Git commands that display a lot of information will show the information through a different program, called [terminal pager](https://en.wikipedia.org/wiki/Terminal_pager). These programs basically show you the information in pages, so that you can see everything and not only the very last bit of informatio... |
35289912 | openssl enc -base64 -d does not decode strings after a certain length | 7 | 2016-02-09 10:43:11 | <p>I have a simple bash script that does encoding / decoding for strings using base64. The script is:</p>
<pre><code>#!/bin/bash
echo "encode or decode ?"
read input
if [ "$input" == "encode" ]
then
echo Please, enter your secret message
read message
echo "The cipher representing your message is"
echo -n $message |... | 9,686 | 5,482,311 | 2016-02-09 16:07:21 | 35,296,674 | 13 | 2016-02-09 16:07:21 | 2,214,695 | 2016-02-09 16:07:21 | https://stackoverflow.com/q/35289912 | https://stackoverflow.com/a/35296674 | <p><code>openssl enc -base64</code> is inserting a carriage return after 64 characters of encoded string. This actually happens about the 49th character of string to be encoded.</p>
<p>To avoid this line break in the encoded string, use option <code>-A</code> in both <code>openssl</code> commands to encode or decode t... | <p><code>openssl enc -base64</code> is inserting a carriage return after 64 characters of encoded string. This actually happens about the 49th character of string to be encoded.</p> <p>To avoid this line break in the encoded string, use option <code>-A</code> in both <code>openssl</code> commands to encode or decode t... | 387, 1124, 1999 | bash, encoding, openssl | <h1>openssl enc -base64 -d does not decode strings after a certain length</h1>
<p>I have a simple bash script that does encoding / decoding for strings using base64. The script is:</p>
<pre><code>#!/bin/bash
echo "encode or decode ?"
read input
if [ "$input" == "encode" ]
then
echo Please, enter your secret message ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,475 | bash | # openssl enc -base64 -d does not decode strings after a certain length
I have a simple bash script that does encoding / decoding for strings using base64. The script is:
```
#!/bin/bash
echo "encode or decode ?"
read input
if [ "$input" == "encode" ]
then
echo Please, enter your secret message
read message
echo "... | `openssl enc -base64` is inserting a carriage return after 64 characters of encoded string. This actually happens about the 49th character of string to be encoded.
To avoid this line break in the encoded string, use option `-A` in both `openssl` commands to encode or decode the whole string at once:
```
echo -n $mess... |
31982926 | New-Item changes function return value | 7 | 2015-08-13 08:13:57 | <p>I want to write a function that creates a folder (if it doesn't exist) with specified name inside specified folder.
It's turned out that depending on calling <code>New-Item</code> function return different values. And I can't figure out how it's related to <code>New-Item</code> actually.</p>
<pre><code>$folderPath ... | 4,643 | 1,606,662 | 2019-06-06 14:20:38 | 31,983,602 | 13 | 2015-08-13 08:51:49 | 1,630,171 | 2015-08-13 08:51:49 | https://stackoverflow.com/q/31982926 | https://stackoverflow.com/a/31983602 | <p><code>New-Item</code> returns the created object, and PowerShell functions return all non-captured output, not just the argument of the <a href="https://technet.microsoft.com/en-us/library/hh847760.aspx" rel="noreferrer"><code>return</code></a> keyword.</p>
<blockquote>
<p>In Windows PowerShell, the results of ea... | <p><code>New-Item</code> returns the created object, and PowerShell functions return all non-captured output, not just the argument of the <a href="https://technet.microsoft.com/en-us/library/hh847760.aspx" rel="noreferrer"><code>return</code></a> keyword.</p> <blockquote> <p>In Windows PowerShell, the results of ea... | 526, 108010 | powershell, powershell-5.0 | <h1>New-Item changes function return value</h1>
<p>I want to write a function that creates a folder (if it doesn't exist) with specified name inside specified folder.
It's turned out that depending on calling <code>New-Item</code> function return different values. And I can't figure out how it's related to <code>New-It... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,476 | bash | # New-Item changes function return value
I want to write a function that creates a folder (if it doesn't exist) with specified name inside specified folder.
It's turned out that depending on calling `New-Item` function return different values. And I can't figure out how it's related to `New-Item` actually.
```
$folde... | `New-Item` returns the created object, and PowerShell functions return all non-captured output, not just the argument of the [`return`](https://technet.microsoft.com/en-us/library/hh847760.aspx) keyword.
> In Windows PowerShell, the results of each statement are returned as output, even without a statement that contai... |
31722119 | Get the path where git alias was run from | 7 | 2015-07-30 11:06:52 | <p>When an external command is run via Git alias, it is run from the rood directory of the repository (where the .git/ is usually located). It can be checked with:</p>
<pre><code>$ cd /some/path/inside/repo
$ echo $(git -c alias.root='!pwd' root)
</code></pre>
<p>Now, <strong>is there a way to get the exact path wher... | 1,947 | 2,790,048 | 2015-07-30 16:59:06 | 31,722,425 | 13 | 2015-07-30 11:22:22 | 6,309 | 2015-07-30 11:22:22 | https://stackoverflow.com/q/31722119 | https://stackoverflow.com/a/31722425 | <p>You need to add <code>cd ${GIT_PREFIX:-.}</code> in your alias. </p>
<p>(<a href="https://github.com/git/git/blob/77bd3ea9f54f1584147b594abc04c26ca516d987/Documentation/RelNotes/1.7.6.txt#L29-L31" rel="noreferrer">Git 1.7.6+</a>:</p>
<blockquote>
<p>Processes spawned by "<code>[alias] <name> = !process</c... | <p>You need to add <code>cd ${GIT_PREFIX:-.}</code> in your alias. </p> <p>(<a href="https://github.com/git/git/blob/77bd3ea9f54f1584147b594abc04c26ca516d987/Documentation/RelNotes/1.7.6.txt#L29-L31" rel="noreferrer">Git 1.7.6+</a>:</p> <blockquote> <p>Processes spawned by "<code>[alias] <name> = !process</c... | 119, 390, 79211 | git, git-alias, shell | <h1>Get the path where git alias was run from</h1>
<p>When an external command is run via Git alias, it is run from the rood directory of the repository (where the .git/ is usually located). It can be checked with:</p>
<pre><code>$ cd /some/path/inside/repo
$ echo $(git -c alias.root='!pwd' root)
</code></pre>
<p>Now... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,477 | bash | # Get the path where git alias was run from
When an external command is run via Git alias, it is run from the rood directory of the repository (where the .git/ is usually located). It can be checked with:
```
$ cd /some/path/inside/repo
$ echo $(git -c alias.root='!pwd' root)
```
Now, **is there a way to get the exa... | You need to add `cd ${GIT_PREFIX:-.}` in your alias.
([Git 1.7.6+](https://github.com/git/git/blob/77bd3ea9f54f1584147b594abc04c26ca516d987/Documentation/RelNotes/1.7.6.txt#L29-L31):
> Processes spawned by "`[alias] <name> = !process`" in the configuration
> can inspect `GIT_PREFIX` environment variable to learn wher... |
13633826 | How can I use ConvertTo-SecureString | 7 | 2012-11-29 20:06:53 | <p>Let's say I need to do this in Powershell:</p>
<pre><code> $SecurePass = Get-Content $CredPath | ConvertTo-SecureString -Key (1..16)
[String]$CleartextPass = [Runtime.InteropServices.Marshal]::PtrToStringAuto([Runtime.InteropServices.Marshal]::SecureStringToBSTR($CredPass));
</code></pre>
<p>The content of ... | 19,033 | 1,848,046 | 2019-02-22 17:57:08 | 30,758,078 | 13 | 2015-06-10 13:39:30 | 4,995,043 | 2015-06-15 14:04:46 | https://stackoverflow.com/q/13633826 | https://stackoverflow.com/a/30758078 | <p>I know this is an old post. I am posting this for completeness and posterity, because I couldn't find a complete answer on MSDN or stackoverflow. It will be here in case I ever need to do this again.</p>
<p>It is a C# implementation of of powershell's ConvertTo-SecureString with AES encryption (turned on by using... | <p>I know this is an old post. I am posting this for completeness and posterity, because I couldn't find a complete answer on MSDN or stackoverflow. It will be here in case I ever need to do this again.</p> <p>It is a C# implementation of of powershell's ConvertTo-SecureString with AES encryption (turned on by using... | 1, 9, 219, 526, 6728 | .net, aes, c#, encryption, powershell | <h1>How can I use ConvertTo-SecureString</h1>
<p>Let's say I need to do this in Powershell:</p>
<pre><code> $SecurePass = Get-Content $CredPath | ConvertTo-SecureString -Key (1..16)
[String]$CleartextPass = [Runtime.InteropServices.Marshal]::PtrToStringAuto([Runtime.InteropServices.Marshal]::SecureStringToBSTR(... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,478 | bash | # How can I use ConvertTo-SecureString
Let's say I need to do this in Powershell:
```
$SecurePass = Get-Content $CredPath | ConvertTo-SecureString -Key (1..16)
[String]$CleartextPass = [Runtime.InteropServices.Marshal]::PtrToStringAuto([Runtime.InteropServices.Marshal]::SecureStringToBSTR($CredPass));
```
Th... | I know this is an old post. I am posting this for completeness and posterity, because I couldn't find a complete answer on MSDN or stackoverflow. It will be here in case I ever need to do this again.
It is a C# implementation of of powershell's ConvertTo-SecureString with AES encryption (turned on by using the -key op... |
29755942 | Possible to urlencode a variable in a shell script? | 7 | 2015-04-20 18:44:35 | <p>Is it possible to url encode a variable within a shell script?</p>
<pre><code>#!/bin/bash
now=$(date +"%T")
DATA=$(wget -q -O - "http://someurl.com/x.htm?callback=webRequest&exthrs=1&extMode=&fund=1&entitlement=0&skipcache=&extendedMask=1&partnerId=2&output=json&noform=1")
... | 12,108 | 4,440,636 | 2021-08-26 18:23:57 | 29,756,078 | 13 | 2015-04-20 18:52:46 | 3,030,305 | 2015-04-20 18:52:46 | https://stackoverflow.com/q/29755942 | https://stackoverflow.com/a/29756078 | <p>Here is one method for URL encoding the shell string <code>DATA</code>:</p>
<pre><code>DATA=$(python -c "import urllib, sys; print urllib.quote(sys.argv[1])" "$DATA")
</code></pre>
<p>Here is another:</p>
<pre><code>DATA=$(perl -MURI::Escape -e 'print uri_escape($ARGV[0]);' "$DATA")
</code></pre>
| <p>Here is one method for URL encoding the shell string <code>DATA</code>:</p> <pre><code>DATA=$(python -c "import urllib, sys; print urllib.quote(sys.argv[1])" "$DATA") </code></pre> <p>Here is another:</p> <pre><code>DATA=$(perl -MURI::Escape -e 'print uri_escape($ARGV[0]);' "$DATA") </code></pre> | 390, 5583, 10327 | sh, shell, wget | <h1>Possible to urlencode a variable in a shell script?</h1>
<p>Is it possible to url encode a variable within a shell script?</p>
<pre><code>#!/bin/bash
now=$(date +"%T")
DATA=$(wget -q -O - "http://someurl.com/x.htm?callback=webRequest&exthrs=1&extMode=&fund=1&entitlement=0&skipcache=&e... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,479 | bash | # Possible to urlencode a variable in a shell script?
Is it possible to url encode a variable within a shell script?
```
#!/bin/bash
now=$(date +"%T")
DATA=$(wget -q -O - "http://someurl.com/x.htm?callback=webRequest&exthrs=1&extMode=&fund=1&entitlement=0&skipcache=&extendedMask=1&partnerId=2&output=json&noform... | Here is one method for URL encoding the shell string `DATA`:
```
DATA=$(python -c "import urllib, sys; print urllib.quote(sys.argv[1])" "$DATA")
```
Here is another:
```
DATA=$(perl -MURI::Escape -e 'print uri_escape($ARGV[0]);' "$DATA")
``` |
29427364 | Non-bash equivalent to "trap ERR" | 7 | 2015-04-03 06:35:09 | <p>I'm trying to remove some bashisms from a shell script.</p>
<p>I can't figure out how I would replicate 'trap ERR': ERR is not a signal, and is not in the <a href="http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_28" rel="noreferrer">standard</a>, but is a common bashism (see e.g. <a ... | 2,015 | 463,510 | 2015-04-04 14:03:43 | 29,447,316 | 13 | 2015-04-04 14:03:43 | 1,126,841 | 2015-04-04 14:03:43 | https://stackoverflow.com/q/29427364 | https://stackoverflow.com/a/29447316 | <p>You can use a combination of <code>set -e</code> and <code>trap ... EXIT</code>.</p>
<pre><code>#!/bin/sh
set -e
err_handler () {
[ $? -eq 0 ] && exit
# Code for non-zero exit status here
}
trap err_handler EXIT
</code></pre>
<p><code>set -e</code> will cause the script to exit whenever an ungua... | <p>You can use a combination of <code>set -e</code> and <code>trap ... EXIT</code>.</p> <pre><code>#!/bin/sh set -e err_handler () { [ $? -eq 0 ] && exit # Code for non-zero exit status here } trap err_handler EXIT </code></pre> <p><code>set -e</code> will cause the script to exit whenever an ungua... | 387, 390 | bash, shell | <h1>Non-bash equivalent to "trap ERR"</h1>
<p>I'm trying to remove some bashisms from a shell script.</p>
<p>I can't figure out how I would replicate 'trap ERR': ERR is not a signal, and is not in the <a href="http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_28" rel="noreferrer">standard... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,480 | bash | # Non-bash equivalent to "trap ERR"
I'm trying to remove some bashisms from a shell script.
I can't figure out how I would replicate 'trap ERR': ERR is not a signal, and is not in the [standard](http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_28), but is a common bashism (see e.g. [the... | You can use a combination of `set -e` and `trap ... EXIT`.
```
#!/bin/sh
set -e
err_handler () {
[ $? -eq 0 ] && exit
# Code for non-zero exit status here
}
trap err_handler EXIT
```
`set -e` will cause the script to exit whenever an unguarded command has an non-zero exit status. The error handler will be ... |
29242217 | "sh: line 1: Moved: command not found" installing npm with curl | sh | 7 | 2015-03-24 20:25:52 | <p>I attempted to install <code>npm</code> on mac OSX Yosemite with the command:</p>
<pre class="lang-sh prettyprint-override"><code>curl https://www.npmjs.org/install.sh | sh
</code></pre>
<p>And I received the following message: </p>
<pre class="lang-none prettyprint-override"><code>% Total % Received % Xferd ... | 4,403 | 2,898,736 | 2015-07-16 14:38:40 | 29,242,272 | 13 | 2015-03-24 20:29:09 | 2,050,455 | 2015-03-25 02:11:20 | https://stackoverflow.com/q/29242217 | https://stackoverflow.com/a/29242272 | <p>You're missing the curl <code>-L</code> option to follow redirects. However, you don't need to use this installation method anymore, npm comes with node and if your distro happens to split node's components up, npm is usually available as a separate package from one of your distro's repositories.</p>
| <p>You're missing the curl <code>-L</code> option to follow redirects. However, you don't need to use this installation method anymore, npm comes with node and if your distro happens to split node's components up, npm is usually available as a separate package from one of your distro's repositories.</p> | 58, 387, 390, 1554, 46426 | bash, curl, linux, node.js, shell | <h1>"sh: line 1: Moved: command not found" installing npm with curl | sh</h1>
<p>I attempted to install <code>npm</code> on mac OSX Yosemite with the command:</p>
<pre class="lang-sh prettyprint-override"><code>curl https://www.npmjs.org/install.sh | sh
</code></pre>
<p>And I received the following message: </p>
<pr... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,481 | bash | # "sh: line 1: Moved: command not found" installing npm with curl | sh
I attempted to install `npm` on mac OSX Yosemite with the command:
```
curl https://www.npmjs.org/install.sh | sh
```
And I received the following message:
```
% Total % Received % Xferd Average Speed Time Time Time Current
... | You're missing the curl `-L` option to follow redirects. However, you don't need to use this installation method anymore, npm comes with node and if your distro happens to split node's components up, npm is usually available as a separate package from one of your distro's repositories. |
28725944 | merge contents of two files into one file in bash | 7 | 2015-02-25 17:41:29 | <p>I have two files which has following contents</p>
<p>File1</p>
<pre><code>Line1file1
Line2file1
line3file1
line4file1
</code></pre>
<p>File2</p>
<pre><code>Line1file2
Line2file2
line3file2
line4file2
</code></pre>
<p>I want to have these file's content merged to file3 as</p>
<p>File3</p>
<pre><code>Line1file1... | 14,504 | 3,784,040 | 2017-03-31 17:49:36 | 28,726,079 | 13 | 2015-02-25 17:48:50 | 2,842,375 | 2015-02-25 17:48:50 | https://stackoverflow.com/q/28725944 | https://stackoverflow.com/a/28726079 | <p>You can always use <a href="http://www.computerhope.com/unix/upaste.htm" rel="noreferrer"><code>paste</code></a> command.</p>
<pre><code>paste -d"\n" File1 File2 > File3
</code></pre>
| <p>You can always use <a href="http://www.computerhope.com/unix/upaste.htm" rel="noreferrer"><code>paste</code></a> command.</p> <pre><code>paste -d"\n" File1 File2 > File3 </code></pre> | 58, 387, 717, 990, 5282 | awk, bash, linux, merge, sed | <h1>merge contents of two files into one file in bash</h1>
<p>I have two files which has following contents</p>
<p>File1</p>
<pre><code>Line1file1
Line2file1
line3file1
line4file1
</code></pre>
<p>File2</p>
<pre><code>Line1file2
Line2file2
line3file2
line4file2
</code></pre>
<p>I want to have these file's content ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,482 | bash | # merge contents of two files into one file in bash
I have two files which has following contents
File1
```
Line1file1
Line2file1
line3file1
line4file1
```
File2
```
Line1file2
Line2file2
line3file2
line4file2
```
I want to have these file's content merged to file3 as
File3
```
Line1file1
Line1file2
Line2file1
... | You can always use [`paste`](http://www.computerhope.com/unix/upaste.htm) command.
```
paste -d"\n" File1 File2 > File3
``` |
28450603 | bash wildcard with variables inside an if statement | 7 | 2015-02-11 09:21:59 | <p>I want to find substring in a string according to <a href="https://stackoverflow.com/questions/229551/string-contains-in-bash">this solution</a>.</p>
<p>But for some reason it doesn't work with variables:</p>
<pre><code>str="abcd";
substr="abc";
if [[ "${substr}"* == ${str} ]]
then
echo "CONTAINS!";
fi
</c... | 18,897 | 1,114,130 | 2015-02-11 09:36:44 | 28,450,908 | 13 | 2015-02-11 09:36:44 | 1,815,797 | 2015-02-11 09:36:44 | https://stackoverflow.com/q/28450603 | https://stackoverflow.com/a/28450908 | <p>In the reference manual, <a href="http://www.gnu.org/software/bash/manual/bashref.html#Conditional-Constructs" rel="noreferrer">section <em>Conditional Constructs</em></a>, you will read, for the documentation of <code>[[ ... ]]</code>:</p>
<blockquote>
<p>When the <code>==</code> and <code>!=</code> operators ar... | <p>In the reference manual, <a href="http://www.gnu.org/software/bash/manual/bashref.html#Conditional-Constructs" rel="noreferrer">section <em>Conditional Constructs</em></a>, you will read, for the documentation of <code>[[ ... ]]</code>:</p> <blockquote> <p>When the <code>==</code> and <code>!=</code> operators ar... | 139, 387, 2773, 5997 | bash, if-statement, string, wildcard | <h1>bash wildcard with variables inside an if statement</h1>
<p>I want to find substring in a string according to <a href="https://stackoverflow.com/questions/229551/string-contains-in-bash">this solution</a>.</p>
<p>But for some reason it doesn't work with variables:</p>
<pre><code>str="abcd";
substr="abc";
if [[ "$... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,483 | bash | # bash wildcard with variables inside an if statement
I want to find substring in a string according to [this solution](https://stackoverflow.com/questions/229551/string-contains-in-bash).
But for some reason it doesn't work with variables:
```
str="abcd";
substr="abc";
if [[ "${substr}"* == ${str} ]]
then
e... | In the reference manual, [section *Conditional Constructs*](http://www.gnu.org/software/bash/manual/bashref.html#Conditional-Constructs), you will read, for the documentation of `[[ ... ]]`:
> When the `==` and `!=` operators are used, **the string to the right of the operator is considered a pattern** and matched acc... |
27090373 | Monit restart program script | 7 | 2014-11-23 15:06:38 | <p>I am fairly new to monit and I was wondering if this script is enough to restart a crashed program lets say program1 is the name of the program.</p>
<pre><code>check process program1
matching "program1"
start program = "/home/user/files/start.sh"
stop program = "/home/user/files/stop.sh"
</code></pre>
<p>Will it r... | 19,895 | 3,572,440 | 2017-04-01 08:32:52 | 27,091,258 | 13 | 2014-11-23 16:25:35 | 2,057,388 | 2014-11-23 20:01:10 | https://stackoverflow.com/q/27090373 | https://stackoverflow.com/a/27091258 | <blockquote>
<p>Monit uses the system call execv to execute a program or a script.
This means that you cannot write shell commands directly in the start,
stop or exec statements. To do this, you must do as above; start a
shell and issue your commands there.</p>
</blockquote>
<p><a href="http://mmonit.com/wiki/... | <blockquote> <p>Monit uses the system call execv to execute a program or a script. This means that you cannot write shell commands directly in the start, stop or exec statements. To do this, you must do as above; start a shell and issue your commands there.</p> </blockquote> <p><a href="http://mmonit.com/wiki/... | 58, 387, 390, 21166 | bash, linux, monit, shell | <h1>Monit restart program script</h1>
<p>I am fairly new to monit and I was wondering if this script is enough to restart a crashed program lets say program1 is the name of the program.</p>
<pre><code>check process program1
matching "program1"
start program = "/home/user/files/start.sh"
stop program = "/home/user/file... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,484 | bash | # Monit restart program script
I am fairly new to monit and I was wondering if this script is enough to restart a crashed program lets say program1 is the name of the program.
```
check process program1
matching "program1"
start program = "/home/user/files/start.sh"
stop program = "/home/user/files/stop.sh"
```
Will... | > Monit uses the system call execv to execute a program or a script.
> This means that you cannot write shell commands directly in the start,
> stop or exec statements. To do this, you must do as above; start a
> shell and issue your commands there.
[`Read about execution`](http://mmonit.com/wiki/Monit/FAQ#execution)
... |
26593200 | Listen for a key press with PowerShell, but don't wait for it | 7 | 2014-10-27 17:24:08 | <p>I'm trying to write a script that toggles the <a href="https://en.wikipedia.org/wiki/Caps_Lock" rel="nofollow noreferrer">Caps Lock</a> key periodically, but I also want to be able to toggle the script because it causes some issues with other functionality (like <kbd>Alt</kbd> tabbing, and rolling over Windows in th... | 37,041 | 2,954,317 | 2025-04-09 21:56:53 | 26,595,471 | 13 | 2014-10-27 19:36:09 | 2,627,148 | 2014-10-27 19:36:09 | https://stackoverflow.com/q/26593200 | https://stackoverflow.com/a/26595471 | <p>Here is a try. BTW I changed the sleep to 1 second so it doesn't flash capslock too much while testing:</p>
<pre><code>$continue = $true
while($continue)
{
if ([console]::KeyAvailable)
{
echo "Toggle with F12";
$x = [System.Console]::ReadKey()
switch ( $x.key)
{
... | <p>Here is a try. BTW I changed the sleep to 1 second so it doesn't flash capslock too much while testing:</p> <pre><code>$continue = $true while($continue) { if ([console]::KeyAvailable) { echo "Toggle with F12"; $x = [System.Console]::ReadKey() switch ( $x.key) { ... | 526 | powershell | <h1>Listen for a key press with PowerShell, but don't wait for it</h1>
<p>I'm trying to write a script that toggles the <a href="https://en.wikipedia.org/wiki/Caps_Lock" rel="nofollow noreferrer">Caps Lock</a> key periodically, but I also want to be able to toggle the script because it causes some issues with other fun... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,485 | bash | # Listen for a key press with PowerShell, but don't wait for it
I'm trying to write a script that toggles the [Caps Lock](https://en.wikipedia.org/wiki/Caps_Lock) key periodically, but I also want to be able to toggle the script because it causes some issues with other functionality (like `Alt` tabbing, and rolling ov... | Here is a try. BTW I changed the sleep to 1 second so it doesn't flash capslock too much while testing:
```
$continue = $true
while($continue)
{
if ([console]::KeyAvailable)
{
echo "Toggle with F12";
$x = [System.Console]::ReadKey()
switch ( $x.key)
{
F12 { $conti... |
25324162 | How to pass two parameters or arguments in bash scripting | 7 | 2014-08-15 09:29:58 | <p>I am new to bash scripting and I need your support to solve this problem. I have a bash script "start.sh". I want to write a script with two arguments so that I could run the script in the following way</p>
<p>./start.sh -dayoffset 1 -processMode true</p>
<p>dayoffset and processMode are the two parameters that I ... | 36,509 | 1,983,063 | 2018-01-05 16:06:13 | 25,324,203 | 13 | 2014-08-15 09:33:30 | 445,221 | 2014-08-15 09:46:07 | https://stackoverflow.com/q/25324162 | https://stackoverflow.com/a/25324203 | <p>As a start you can do this:</p>
<pre><code>#!/bin/bash
dayoffset=$1
processMode=$2
echo "Do something with $dayoffset and $processMode."
</code></pre>
<p>Usage:</p>
<pre><code>./start.sh 1 true
</code></pre>
<p>Another:</p>
<pre><code>#!/bin/bash
while [[ $# -gt 0 ]]; do
case "$1" in
-dayoffset)
... | <p>As a start you can do this:</p> <pre><code>#!/bin/bash dayoffset=$1 processMode=$2 echo "Do something with $dayoffset and $processMode." </code></pre> <p>Usage:</p> <pre><code>./start.sh 1 true </code></pre> <p>Another:</p> <pre><code>#!/bin/bash while [[ $# -gt 0 ]]; do case "$1" in -dayoffset) ... | 34, 58, 387, 390 | bash, linux, shell, unix | <h1>How to pass two parameters or arguments in bash scripting</h1>
<p>I am new to bash scripting and I need your support to solve this problem. I have a bash script "start.sh". I want to write a script with two arguments so that I could run the script in the following way</p>
<p>./start.sh -dayoffset 1 -processMode tr... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,486 | bash | # How to pass two parameters or arguments in bash scripting
I am new to bash scripting and I need your support to solve this problem. I have a bash script "start.sh". I want to write a script with two arguments so that I could run the script in the following way
./start.sh -dayoffset 1 -processMode true
dayoffset an... | As a start you can do this:
```
#!/bin/bash
dayoffset=$1
processMode=$2
echo "Do something with $dayoffset and $processMode."
```
Usage:
```
./start.sh 1 true
```
Another:
```
#!/bin/bash
while [[ $# -gt 0 ]]; do
case "$1" in
-dayoffset)
day_offset=$2
shift
;;
-processMode)
... |
20689850 | Define schemes in an xcode phonegap project from terminal | 7 | 2013-12-19 19:13:49 | <p>I'm writing a script to archive the iOS portion of a phonegap project. The script wipes the directory that the project is in and then repopulates it using the latest code from source control. I then run<code>$ phonegap local build ios</code> in order to build the project. However in order to archive the project I... | 3,851 | 2,615,252 | 2015-03-08 19:25:59 | 23,901,764 | 13 | 2014-05-28 02:11:27 | 2,288,565 | 2014-05-28 02:11:27 | https://stackoverflow.com/q/20689850 | https://stackoverflow.com/a/23901764 | <p>This is a completely fair question given that Xcode schemes are somewhat less than thoroughly documented and schemes have this feeling of being somewhat magical until you see how they hook into the build process as a whole.</p>
<p>Based on the workarounds you are seeking, it sounds as though you need to promote a s... | <p>This is a completely fair question given that Xcode schemes are somewhat less than thoroughly documented and schemes have this feeling of being somewhat magical until you see how they hook into the build process as a whole.</p> <p>Based on the workarounds you are seeking, it sounds as though you need to promote a s... | 387, 12892, 78331 | bash, cordova, xcodebuild | <h1>Define schemes in an xcode phonegap project from terminal</h1>
<p>I'm writing a script to archive the iOS portion of a phonegap project. The script wipes the directory that the project is in and then repopulates it using the latest code from source control. I then run<code>$ phonegap local build ios</code> in ord... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,487 | bash | # Define schemes in an xcode phonegap project from terminal
I'm writing a script to archive the iOS portion of a phonegap project. The script wipes the directory that the project is in and then repopulates it using the latest code from source control. I then run`$ phonegap local build ios` in order to build the projec... | This is a completely fair question given that Xcode schemes are somewhat less than thoroughly documented and schemes have this feeling of being somewhat magical until you see how they hook into the build process as a whole.
Based on the workarounds you are seeking, it sounds as though you need to promote a scheme to b... |
23761109 | Invoke-command -ArgumentList parameter syntax | 7 | 2014-05-20 13:25:09 | <p>I'm trying to add multiple csv-imported lists to a remote executed PS script. It works fine when I pass only one list using the following command:</p>
<pre><code>Invoke-Command -filepath $createSAPSPath -ConnectionUri $uri -Credential $credential -ArgumentList (,$accountsList)
</code></pre>
<p>What would be the co... | 69,220 | 1,241,342 | 2021-08-03 18:45:16 | 23,766,633 | 13 | 2014-05-20 17:49:27 | 674,943 | 2014-05-20 17:49:27 | https://stackoverflow.com/q/23761109 | https://stackoverflow.com/a/23766633 | <p>You have to realize why you need unary comma in the first situation, to understand why its not needed in the second one.</p>
<p>Parameter <code>-ArgumentList</code> takes <code>Object[]</code> argument type. If you are passing single collection, you need to prevent PowerShell from treating single argument (that hap... | <p>You have to realize why you need unary comma in the first situation, to understand why its not needed in the second one.</p> <p>Parameter <code>-ArgumentList</code> takes <code>Object[]</code> argument type. If you are passing single collection, you need to prevent PowerShell from treating single argument (that hap... | 526, 63177 | powershell, powershell-remoting | <h1>Invoke-command -ArgumentList parameter syntax</h1>
<p>I'm trying to add multiple csv-imported lists to a remote executed PS script. It works fine when I pass only one list using the following command:</p>
<pre><code>Invoke-Command -filepath $createSAPSPath -ConnectionUri $uri -Credential $credential -ArgumentList ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,488 | bash | # Invoke-command -ArgumentList parameter syntax
I'm trying to add multiple csv-imported lists to a remote executed PS script. It works fine when I pass only one list using the following command:
```
Invoke-Command -filepath $createSAPSPath -ConnectionUri $uri -Credential $credential -ArgumentList (,$accountsList)
```... | You have to realize why you need unary comma in the first situation, to understand why its not needed in the second one.
Parameter `-ArgumentList` takes `Object[]` argument type. If you are passing single collection, you need to prevent PowerShell from treating single argument (that happens to be a collection) as coll... |
23147370 | How to schedule a shell script in Linux centos? | 7 | 2014-04-18 04:28:13 | <p>I have a script that I need to schedule on daily basis. How can I schedule a script in centos. Like I want to run that script everyday at 10 AM and can I store the output of the script in a log file.</p>
<p>How to achieve this?</p>
<p>Thanks</p>
| 19,025 | 3,466,859 | 2014-04-18 04:33:43 | 23,147,406 | 13 | 2014-04-18 04:33:43 | 970,195 | 2014-04-18 04:33:43 | https://stackoverflow.com/q/23147370 | https://stackoverflow.com/a/23147406 | <p>To schedule a script, you'll need to use <code>crontab</code>. You can add a schedule entry by doing:</p>
<pre><code>crontab -e
</code></pre>
<p>Once you are inside, the <code>cron</code> accepts pattern in the form: </p>
<pre><code><Minute> <Hour> <Day> <Month> <Day of Week> <Com... | <p>To schedule a script, you'll need to use <code>crontab</code>. You can add a schedule entry by doing:</p> <pre><code>crontab -e </code></pre> <p>Once you are inside, the <code>cron</code> accepts pattern in the form: </p> <pre><code><Minute> <Hour> <Day> <Month> <Day of Week> <Com... | 58, 390, 4192 | linux, scheduling, shell | <h1>How to schedule a shell script in Linux centos?</h1>
<p>I have a script that I need to schedule on daily basis. How can I schedule a script in centos. Like I want to run that script everyday at 10 AM and can I store the output of the script in a log file.</p>
<p>How to achieve this?</p>
<p>Thanks</p>
| q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,489 | bash | # How to schedule a shell script in Linux centos?
I have a script that I need to schedule on daily basis. How can I schedule a script in centos. Like I want to run that script everyday at 10 AM and can I store the output of the script in a log file.
How to achieve this?
Thanks | To schedule a script, you'll need to use `crontab`. You can add a schedule entry by doing:
```
crontab -e
```
Once you are inside, the `cron` accepts pattern in the form:
```
<Minute> <Hour> <Day> <Month> <Day of Week> <Command>
```
So a correct crontab entry for 10am would be
```
0 10 * * * /path/to/script
```
I... |
22048216 | How to remove a file whose name starts with '-' | 7 | 2014-02-26 17:01:59 | <p>After a mistake in a script I ended up with a file whose name starts with a dash, <code>-</code>:</p>
<pre><code>-myfile.txt
</code></pre>
<p>I tried so far:</p>
<pre><code>rm -myfile.txt
rm: illegal option -- m
usage: rm [-f | -i] [-dPRrvW] file ...
unlink file
rm "-myfile.txt"
rm: illegal option -- m
us... | 3,222 | 3,297,428 | 2019-04-03 16:31:28 | 22,048,350 | 13 | 2014-02-26 17:06:56 | 3,297,428 | 2014-02-26 17:06:56 | https://stackoverflow.com/q/22048216 | https://stackoverflow.com/a/22048350 | <p>Thanks to @ajp15243 :
the answer is :</p>
<pre><code>rm ./-myfile.txt
</code></pre>
<p>or</p>
<pre><code>rm -- -myfile.txt
</code></pre>
| <p>Thanks to @ajp15243 : the answer is :</p> <pre><code>rm ./-myfile.txt </code></pre> <p>or</p> <pre><code>rm -- -myfile.txt </code></pre> | 34, 387, 390, 5610 | bash, rm, shell, unix | <h1>How to remove a file whose name starts with '-'</h1>
<p>After a mistake in a script I ended up with a file whose name starts with a dash, <code>-</code>:</p>
<pre><code>-myfile.txt
</code></pre>
<p>I tried so far:</p>
<pre><code>rm -myfile.txt
rm: illegal option -- m
usage: rm [-f | -i] [-dPRrvW] file ...
... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,490 | bash | # How to remove a file whose name starts with '-'
After a mistake in a script I ended up with a file whose name starts with a dash, `-`:
```
-myfile.txt
```
I tried so far:
```
rm -myfile.txt
rm: illegal option -- m
usage: rm [-f | -i] [-dPRrvW] file ...
unlink file
rm "-myfile.txt"
rm: illegal option -- m
... | Thanks to @ajp15243 :
the answer is :
```
rm ./-myfile.txt
```
or
```
rm -- -myfile.txt
``` |
21651114 | error while running "source .vimrc" | 7 | 2014-02-08 20:00:28 | <p>i am having a simple vimrc file when i run "source .vimrc" in ubuntu I am getting the following error.</p>
<pre><code>$ source .vimrc
bash: .vimrc: line 3: syntax error near unexpected token `"syntax"'
bash: .vimrc: line 3: `if has("syntax")'
</code></pre>
<p>Here is my script file</p>
<pre><code>set term=builti... | 4,374 | 2,421,350 | 2014-02-08 20:13:51 | 21,651,147 | 13 | 2014-02-08 20:03:01 | 546,861 | 2014-02-08 20:03:01 | https://stackoverflow.com/q/21651114 | https://stackoverflow.com/a/21651147 | <p>You tried to source your Vim configuration file from bash. Do it from Vim:</p>
<pre><code>$ vim
:source /path/to/.vimrc
</code></pre>
<p>If it's located at <code>~/.vimrc</code>, Vim will source that file automatically.</p>
| <p>You tried to source your Vim configuration file from bash. Do it from Vim:</p> <pre><code>$ vim :source /path/to/.vimrc </code></pre> <p>If it's located at <code>~/.vimrc</code>, Vim will source that file automatically.</p> | 370, 387, 80492 | bash, ubuntu-12.04, vim | <h1>error while running "source .vimrc"</h1>
<p>i am having a simple vimrc file when i run "source .vimrc" in ubuntu I am getting the following error.</p>
<pre><code>$ source .vimrc
bash: .vimrc: line 3: syntax error near unexpected token `"syntax"'
bash: .vimrc: line 3: `if has("syntax")'
</code></pre>
<p>Here is m... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,491 | bash | # error while running "source .vimrc"
i am having a simple vimrc file when i run "source .vimrc" in ubuntu I am getting the following error.
```
$ source .vimrc
bash: .vimrc: line 3: syntax error near unexpected token `"syntax"'
bash: .vimrc: line 3: `if has("syntax")'
```
Here is my script file
```
set term=built... | You tried to source your Vim configuration file from bash. Do it from Vim:
```
$ vim
:source /path/to/.vimrc
```
If it's located at `~/.vimrc`, Vim will source that file automatically. |
21249419 | How do I programatically detect if my laptop is plugged in or not? (osx) | 7 | 2014-01-21 04:50:06 | <p>Exactly as the title says -- I'm looking for a way, in OSX, to tell me if my laptop is currently plugged in so that I can start/pause CPU intensive tasks as necessary.</p>
<p>Better yet, a way to get notifications whenever there is a change to the plugged in state.</p>
| 3,140 | null | 2014-01-21 05:49:49 | 21,249,561 | 13 | 2014-01-21 05:02:41 | 2,235,132 | 2014-01-21 05:02:41 | https://stackoverflow.com/q/21249419 | https://stackoverflow.com/a/21249561 | <p>You could use <a href="https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/pmset.1.html" rel="noreferrer"><code>pmset</code></a>:</p>
<blockquote>
<p><code>-g</code> ps / batt displays status of batteries and UPSs.</p>
</blockquote>
<p>Saying:</p>
<pre><code>pmset -g ps
</code><... | <p>You could use <a href="https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/pmset.1.html" rel="noreferrer"><code>pmset</code></a>:</p> <blockquote> <p><code>-g</code> ps / batt displays status of batteries and UPSs.</p> </blockquote> <p>Saying:</p> <pre><code>pmset -g ps </code><... | 369, 390 | macos, shell | <h1>How do I programatically detect if my laptop is plugged in or not? (osx)</h1>
<p>Exactly as the title says -- I'm looking for a way, in OSX, to tell me if my laptop is currently plugged in so that I can start/pause CPU intensive tasks as necessary.</p>
<p>Better yet, a way to get notifications whenever there is a ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,492 | bash | # How do I programatically detect if my laptop is plugged in or not? (osx)
Exactly as the title says -- I'm looking for a way, in OSX, to tell me if my laptop is currently plugged in so that I can start/pause CPU intensive tasks as necessary.
Better yet, a way to get notifications whenever there is a change to the pl... | You could use [`pmset`](https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/pmset.1.html):
> `-g` ps / batt displays status of batteries and UPSs.
Saying:
```
pmset -g ps
```
would tell you if the laptop is running on AC power or using battery power.
To translate into a condition, ... |
20335659 | Powershell Start-job synchronous output | 7 | 2013-12-02 18:52:24 | <p>I have a powershell script that starts a job</p>
<pre><code>start-job -scriptblock {
while($true) {
echo "Running"
Start-Sleep 2
}
}
</code></pre>
<p>and then it continues executing the rest of the script.</p>
<p>That job, is kind of a monitoring one for the PID of that process.</p>
<p>I would like ... | 4,005 | 1,728,402 | 2014-07-18 21:27:42 | 20,337,008 | 13 | 2013-12-02 20:16:27 | 897,326 | 2013-12-02 20:22:17 | https://stackoverflow.com/q/20335659 | https://stackoverflow.com/a/20337008 | <p>Yes, you can use events:</p>
<pre><code>$job = Start-Job -ScriptBlock {
while($true) {
Register-EngineEvent -SourceIdentifier MyNewMessage -Forward
Start-Sleep -Seconds 3
$null = New-Event -SourceIdentifier MyNewMessage -MessageData "Pingback from job."
}
}
$event = Register-EngineEvent -SourceIde... | <p>Yes, you can use events:</p> <pre><code>$job = Start-Job -ScriptBlock { while($true) { Register-EngineEvent -SourceIdentifier MyNewMessage -Forward Start-Sleep -Seconds 3 $null = New-Event -SourceIdentifier MyNewMessage -MessageData "Pingback from job." } } $event = Register-EngineEvent -SourceIde... | 526, 531, 43392 | powershell, scripting, start-job | <h1>Powershell Start-job synchronous output</h1>
<p>I have a powershell script that starts a job</p>
<pre><code>start-job -scriptblock {
while($true) {
echo "Running"
Start-Sleep 2
}
}
</code></pre>
<p>and then it continues executing the rest of the script.</p>
<p>That job, is kind of a monitoring one f... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,493 | bash | # Powershell Start-job synchronous output
I have a powershell script that starts a job
```
start-job -scriptblock {
while($true) {
echo "Running"
Start-Sleep 2
}
}
```
and then it continues executing the rest of the script.
That job, is kind of a monitoring one for the PID of that process.
I would lik... | Yes, you can use events:
```
$job = Start-Job -ScriptBlock {
while($true) {
Register-EngineEvent -SourceIdentifier MyNewMessage -Forward
Start-Sleep -Seconds 3
$null = New-Event -SourceIdentifier MyNewMessage -MessageData "Pingback from job."
}
}
$event = Register-EngineEvent -SourceIdentifier MyNewM... |
19065522 | Shebang executable not found because of UTF-8 BOM (Byte Order Mark) | 7 | 2013-09-28 09:42:10 | <p>For some reason the shebang in one of my scripts does not work:</p>
<pre><code>#!/usr/bin/env python
# -*- coding: utf-8 -*-
print "Hello World"
</code></pre>
<p>When I execute this file, I get an error</p>
<pre><code> % ./test.py
./test.py: 1: #!/usr/bin/env: not found
</code></pre>
<p>There is no problem with ... | 7,972 | 479,851 | 2015-07-14 21:02:36 | 19,065,575 | 13 | 2013-09-28 09:47:55 | 510,937 | 2013-09-28 09:50:08 | https://stackoverflow.com/q/19065522 | https://stackoverflow.com/a/19065575 | <p>This is due to how Unix and Linux handle the shebang. <a href="http://en.wikipedia.org/wiki/Shebang_%28Unix%29" rel="noreferrer"><code>#!</code></a> must be the <em>first two bytes</em> in the file. If you have a BOM then this isn't true anymore hence the error.</p>
<p>Note that putting a BOM is completely useless ... | <p>This is due to how Unix and Linux handle the shebang. <a href="http://en.wikipedia.org/wiki/Shebang_%28Unix%29" rel="noreferrer"><code>#!</code></a> must be the <em>first two bytes</em> in the file. If you have a BOM then this isn't true anymore hence the error.</p> <p>Note that putting a BOM is completely useless ... | 16, 387 | bash, python | <h1>Shebang executable not found because of UTF-8 BOM (Byte Order Mark)</h1>
<p>For some reason the shebang in one of my scripts does not work:</p>
<pre><code>#!/usr/bin/env python
# -*- coding: utf-8 -*-
print "Hello World"
</code></pre>
<p>When I execute this file, I get an error</p>
<pre><code> % ./test.py
./test... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,495 | bash | # Shebang executable not found because of UTF-8 BOM (Byte Order Mark)
For some reason the shebang in one of my scripts does not work:
```
#!/usr/bin/env python
# -*- coding: utf-8 -*-
print "Hello World"
```
When I execute this file, I get an error
```
% ./test.py
./test.py: 1: #!/usr/bin/env: not found
```
There... | This is due to how Unix and Linux handle the shebang. [`#!`](http://en.wikipedia.org/wiki/Shebang_%28Unix%29) must be the *first two bytes* in the file. If you have a BOM then this isn't true anymore hence the error.
Note that putting a BOM is completely useless from the point of view of the python interpreter, since ... |
18638087 | Differences between Invoke-Expression and Invoke-Expression -Command | 7 | 2013-09-05 13:46:22 | <p>Can someone explain the differences between <code>Invoke-Expression $test</code> and <code>Invoke-Expression -Command $test</code>?</p>
<p>variable test is:</p>
<pre><code> $test = "notepad.exe myfile.txt"
</code></pre>
| 23,561 | 1,157,530 | 2021-01-21 01:30:59 | 18,638,275 | 13 | 2013-09-05 13:54:11 | 2,215,029 | 2013-09-05 13:54:11 | https://stackoverflow.com/q/18638087 | https://stackoverflow.com/a/18638275 | <p>Both <code>Invoke-Expression $test</code> and <code>Invoke-Expression -Command $test</code> are the same. Both will put <code>$test</code> into the 'command' parameter that is at position 1. The <code>-Command</code> is and optional parameter name that you can put in. </p>
<pre><code>SYNTAX
Invoke-Expression [-... | <p>Both <code>Invoke-Expression $test</code> and <code>Invoke-Expression -Command $test</code> are the same. Both will put <code>$test</code> into the 'command' parameter that is at position 1. The <code>-Command</code> is and optional parameter name that you can put in. </p> <pre><code>SYNTAX Invoke-Expression [-... | 526, 24067 | powershell, powershell-2.0 | <h1>Differences between Invoke-Expression and Invoke-Expression -Command</h1>
<p>Can someone explain the differences between <code>Invoke-Expression $test</code> and <code>Invoke-Expression -Command $test</code>?</p>
<p>variable test is:</p>
<pre><code> $test = "notepad.exe myfile.txt"
</code></pre>
| q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,496 | bash | # Differences between Invoke-Expression and Invoke-Expression -Command
Can someone explain the differences between `Invoke-Expression $test` and `Invoke-Expression -Command $test`?
variable test is:
```
$test = "notepad.exe myfile.txt"
``` | Both `Invoke-Expression $test` and `Invoke-Expression -Command $test` are the same. Both will put `$test` into the 'command' parameter that is at position 1. The `-Command` is and optional parameter name that you can put in.
```
SYNTAX
Invoke-Expression [-Command] <string> [<CommonParameters>]
``` |
18087964 | sh screen - Wait for screen to terminate | 7 | 2013-08-06 18:37:28 | <p>I'm writing on a little script that does send a command to a running screen session. This command stops the screen but not instantly. I need to wait for it to finish in order to continue with the rest of the script.</p>
<p>This is how I stop the screen:</p>
<pre><code>screen -S $SCREEN_NAME -p 0 -X stuff "`printf ... | 7,561 | 1,996,022 | 2019-09-13 19:17:43 | 18,137,087 | 13 | 2013-08-08 22:14:12 | 1,996,022 | 2013-08-08 22:14:12 | https://stackoverflow.com/q/18087964 | https://stackoverflow.com/a/18137087 | <p>I found an solution:</p>
<p>You just simply check if the screen is still running and wait (<code>sleep</code>) for one second.</p>
<p>Like this:</p>
<pre><code>while screen -list | grep -q $SCREEN_NAME
do
sleep 1
done
</code></pre>
| <p>I found an solution:</p> <p>You just simply check if the screen is still running and wait (<code>sleep</code>) for one second.</p> <p>Like this:</p> <pre><code>while screen -list | grep -q $SCREEN_NAME do sleep 1 done </code></pre> | 390, 5024, 13691, 21289 | gnu-screen, shell, terminate, wait | <h1>sh screen - Wait for screen to terminate</h1>
<p>I'm writing on a little script that does send a command to a running screen session. This command stops the screen but not instantly. I need to wait for it to finish in order to continue with the rest of the script.</p>
<p>This is how I stop the screen:</p>
<pre><c... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,497 | bash | # sh screen - Wait for screen to terminate
I'm writing on a little script that does send a command to a running screen session. This command stops the screen but not instantly. I need to wait for it to finish in order to continue with the rest of the script.
This is how I stop the screen:
```
screen -S $SCREEN_NAME ... | I found an solution:
You just simply check if the screen is still running and wait (`sleep`) for one second.
Like this:
```
while screen -list | grep -q $SCREEN_NAME
do
sleep 1
done
``` |
17588678 | TFS commands in PowerShell script | 7 | 2013-07-11 08:32:28 | <p>I have a Powershell script written in the version 1.0. In this existing old script I need the facility to get the latest code of a project from TFS. I have TFS client on the machine and that lets me use the TFS command line. I have created the TFS command line comments to get the latest from TFS. These commands run ... | 23,803 | 2,193,894 | 2016-06-03 13:15:53 | 17,589,221 | 13 | 2013-07-11 09:00:01 | 26,396 | 2013-07-11 11:55:11 | https://stackoverflow.com/q/17588678 | https://stackoverflow.com/a/17589221 | <p>One option is to run the <a href="http://msdn.microsoft.com/en-us/library/z51z7zy0%28v=vs.100%29.aspx">TF.exe</a> program with the necessary arguments from within your PowerShell script, as you would with any other executable:</p>
<pre><code>PS> & "$env:ProgramFiles\Microsoft Visual Studio 10.0\Common7\IDE\T... | <p>One option is to run the <a href="http://msdn.microsoft.com/en-us/library/z51z7zy0%28v=vs.100%29.aspx">TF.exe</a> program with the necessary arguments from within your PowerShell script, as you would with any other executable:</p> <pre><code>PS> & "$env:ProgramFiles\Microsoft Visual Studio 10.0\Common7\IDE\T... | 526, 733 | powershell, tfs | <h1>TFS commands in PowerShell script</h1>
<p>I have a Powershell script written in the version 1.0. In this existing old script I need the facility to get the latest code of a project from TFS. I have TFS client on the machine and that lets me use the TFS command line. I have created the TFS command line comments to g... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,498 | bash | # TFS commands in PowerShell script
I have a Powershell script written in the version 1.0. In this existing old script I need the facility to get the latest code of a project from TFS. I have TFS client on the machine and that lets me use the TFS command line. I have created the TFS command line comments to get the la... | One option is to run the [TF.exe](http://msdn.microsoft.com/en-us/library/z51z7zy0%28v=vs.100%29.aspx) program with the necessary arguments from within your PowerShell script, as you would with any other executable:
```
PS> & "$env:ProgramFiles\Microsoft Visual Studio 10.0\Common7\IDE\TF.exe" @("workspace", "/new", "W... |
17565829 | bash: kill $$ not work? | 7 | 2013-07-10 08:30:16 | <p>The command <code>kill $$</code> should kill current bash, but it seems that it doesn't work:</p>
<pre><code>$ ps -p $$
PID TTY TIME CMD
18179 pts/4 00:00:00 bash
$ kill $$
$ ps -p $$
PID TTY TIME CMD
18179 pts/4 00:00:00 bash
</code></pre>
<p>Why?</p>
| 6,170 | 1,253,826 | 2013-07-10 08:49:25 | 17,566,194 | 13 | 2013-07-10 08:48:26 | 2,235,132 | 2013-07-10 08:48:26 | https://stackoverflow.com/q/17565829 | https://stackoverflow.com/a/17566194 | <p>I'm not sure why one would like to <code>kill</code> the current shell. Nevertheless...</p>
<p><code>kill PID</code> would send <code>SIGTERM</code> when no signal is specified. <code>bash</code> ignores <code>SIGTERM</code> and <code>SIGQUIT</code> in the absence of any traps.</p>
<p>You'll achieve the <em>desi... | <p>I'm not sure why one would like to <code>kill</code> the current shell. Nevertheless...</p> <p><code>kill PID</code> would send <code>SIGTERM</code> when no signal is specified. <code>bash</code> ignores <code>SIGTERM</code> and <code>SIGQUIT</code> in the absence of any traps.</p> <p>You'll achieve the <em>desi... | 58, 387, 5779 | bash, kill, linux | <h1>bash: kill $$ not work?</h1>
<p>The command <code>kill $$</code> should kill current bash, but it seems that it doesn't work:</p>
<pre><code>$ ps -p $$
PID TTY TIME CMD
18179 pts/4 00:00:00 bash
$ kill $$
$ ps -p $$
PID TTY TIME CMD
18179 pts/4 00:00:00 bash
</code></pre>
<p>Why?</p>
| q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,499 | bash | # bash: kill $$ not work?
The command `kill $$` should kill current bash, but it seems that it doesn't work:
```
$ ps -p $$
PID TTY TIME CMD
18179 pts/4 00:00:00 bash
$ kill $$
$ ps -p $$
PID TTY TIME CMD
18179 pts/4 00:00:00 bash
```
Why? | I'm not sure why one would like to `kill` the current shell. Nevertheless...
`kill PID` would send `SIGTERM` when no signal is specified. `bash` ignores `SIGTERM` and `SIGQUIT` in the absence of any traps.
You'll achieve the *desired* effect if you were to say
```
kill -9 $$
```
or
```
kill -SIGKILL $$
```
Quotin... |
17487514 | in Linux "which source" returns nothing? | 7 | 2013-07-05 11:11:01 | <p>I want to <code>source</code> some shell scripts in <code>c</code> using <code>exec()</code>.</p>
<p>What is <code>source</code> ? is that a <code>binary executable</code> or a <code>shell script</code> ? where can i find that in linux file system ?</p>
<p>I ran</p>
<pre><code>charan@PC-113:~$ which source
char... | 4,483 | 1,619,597 | 2013-07-08 08:14:42 | 17,487,554 | 13 | 2013-07-05 11:12:33 | 1,983,854 | 2013-07-08 08:14:42 | https://stackoverflow.com/q/17487514 | https://stackoverflow.com/a/17487554 | <p>It is a builtin shell command, like <code>cd</code>, <code>exit</code>, <code>pwd</code>...:</p>
<pre><code>$ enable -p | grep source
enable source
</code></pre>
<p>Note that <code>enable -p</code> shows all the builtins. More info in <a href="http://ss64.com/bash/enable.html" rel="noreferrer">enable Man page</a>.... | <p>It is a builtin shell command, like <code>cd</code>, <code>exit</code>, <code>pwd</code>...:</p> <pre><code>$ enable -p | grep source enable source </code></pre> <p>Note that <code>enable -p</code> shows all the builtins. More info in <a href="http://ss64.com/bash/enable.html" rel="noreferrer">enable Man page</a>.... | 8, 58, 390, 9661 | c, linux, shell, system-calls | <h1>in Linux "which source" returns nothing?</h1>
<p>I want to <code>source</code> some shell scripts in <code>c</code> using <code>exec()</code>.</p>
<p>What is <code>source</code> ? is that a <code>binary executable</code> or a <code>shell script</code> ? where can i find that in linux file system ?</p>
<p>I ran</p... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,500 | bash | # in Linux "which source" returns nothing?
I want to `source` some shell scripts in `c` using `exec()`.
What is `source` ? is that a `binary executable` or a `shell script` ? where can i find that in linux file system ?
I ran
```
charan@PC-113:~$ which source
charan@PC-113:~$
``` | It is a builtin shell command, like `cd`, `exit`, `pwd`...:
```
$ enable -p | grep source
enable source
```
Note that `enable -p` shows all the builtins. More info in [enable Man page](http://ss64.com/bash/enable.html).
### Update
Just saw a pretty interesting thread in SuperUser: [What does source do?](https://sup... |
14841946 | Trouble when running autogen.sh | 7 | 2013-02-12 21:14:00 | <p>I have downloaded R tree from <a href="http://libspatialindex.github.com/" rel="noreferrer">http://libspatialindex.github.com/</a></p>
<p>Since on running ./autogen.sh I was getting file/folder not found, therefore I downloaded the file autogen.sh from the github repository given below:</p>
<p><a href="https://raw... | 17,104 | 1,778,824 | 2022-03-29 14:06:11 | 14,842,032 | 13 | 2013-02-12 21:19:05 | 1,899,640 | 2013-02-12 21:19:05 | https://stackoverflow.com/q/14841946 | https://stackoverflow.com/a/14842032 | <p>Install <code>libtool</code> from your package manager. </p>
| <p>Install <code>libtool</code> from your package manager. </p> | 58, 387, 549 | bash, linux, ubuntu | <h1>Trouble when running autogen.sh</h1>
<p>I have downloaded R tree from <a href="http://libspatialindex.github.com/" rel="noreferrer">http://libspatialindex.github.com/</a></p>
<p>Since on running ./autogen.sh I was getting file/folder not found, therefore I downloaded the file autogen.sh from the github repository ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,501 | bash | # Trouble when running autogen.sh
I have downloaded R tree from <http://libspatialindex.github.com/>
Since on running ./autogen.sh I was getting file/folder not found, therefore I downloaded the file autogen.sh from the github repository given below:
<https://raw.github.com/libspatialindex/libspatialindex/9a5a2f4d83... | Install `libtool` from your package manager. |
14116275 | grep for string in all files in directories with certain names | 7 | 2013-01-02 02:37:22 | <p>I have csv files in directories with this structure:</p>
<pre><code>20090120/
20090121/
20090122/
etc...
</code></pre>
<p>I want to grep for a certain string in all of the csv files in these directories, but only for January 2009, e.g. 200901*/*.csv</p>
<p>Is there a bash command line argument that can do this?</... | 19,300 | 788,171 | 2017-07-26 21:11:08 | 14,116,290 | 13 | 2013-01-02 02:39:37 | 1,574,959 | 2013-01-02 02:39:37 | https://stackoverflow.com/q/14116275 | https://stackoverflow.com/a/14116290 | <p>Yes. <code>grep "a certain string" 200901*/*.csv</code>.</p>
| <p>Yes. <code>grep "a certain string" 200901*/*.csv</code>.</p> | 218, 387, 1271, 10193 | bash, directory, find, grep | <h1>grep for string in all files in directories with certain names</h1>
<p>I have csv files in directories with this structure:</p>
<pre><code>20090120/
20090121/
20090122/
etc...
</code></pre>
<p>I want to grep for a certain string in all of the csv files in these directories, but only for January 2009, e.g. 200901*... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,502 | bash | # grep for string in all files in directories with certain names
I have csv files in directories with this structure:
```
20090120/
20090121/
20090122/
etc...
```
I want to grep for a certain string in all of the csv files in these directories, but only for January 2009, e.g. 200901*/*.csv
Is there a bash command l... | Yes. `grep "a certain string" 200901*/*.csv`. |
13950044 | How to execute a .Bat with mutliple Parameters from Powershell scripts | 7 | 2012-12-19 10:16:39 | <p>how do I execue a .bat from a powershell script.</p>
<p>I want to do something like:</p>
<pre><code>foreach($item in $list){
param1= $item.Name
param2= $item.path
C:\Filesystem_Batches\test.bat param1 param2
}
</code></pre>
<p>Thank you</p>
| 32,553 | 1,768,339 | 2019-04-07 01:54:41 | 13,950,096 | 13 | 2012-12-19 10:19:10 | 381,149 | 2012-12-19 10:19:10 | https://stackoverflow.com/q/13950044 | https://stackoverflow.com/a/13950096 | <p>You can call </p>
<pre><code>cmd.exe /C "test.bat param1 param2"
</code></pre>
<p>In powershell V3 there is a new espace string --% which allow to send "weird" parameters to your exes.
exemple :</p>
<pre><code>PS> echoargs.exe --% %USERNAME%,this=$something{weird}
Arg 0 is <jason,this=$something{weird}>... | <p>You can call </p> <pre><code>cmd.exe /C "test.bat param1 param2" </code></pre> <p>In powershell V3 there is a new espace string --% which allow to send "weird" parameters to your exes. exemple :</p> <pre><code>PS> echoargs.exe --% %USERNAME%,this=$something{weird} Arg 0 is <jason,this=$something{weird}>... | 360, 526, 7002 | batch-file, parameters, powershell | <h1>How to execute a .Bat with mutliple Parameters from Powershell scripts</h1>
<p>how do I execue a .bat from a powershell script.</p>
<p>I want to do something like:</p>
<pre><code>foreach($item in $list){
param1= $item.Name
param2= $item.path
C:\Filesystem_Batches\test.bat param1 param2
}
</code></pre>
<... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,503 | bash | # How to execute a .Bat with mutliple Parameters from Powershell scripts
how do I execue a .bat from a powershell script.
I want to do something like:
```
foreach($item in $list){
param1= $item.Name
param2= $item.path
C:\Filesystem_Batches\test.bat param1 param2
}
```
Thank you | You can call
```
cmd.exe /C "test.bat param1 param2"
```
In powershell V3 there is a new espace string --% which allow to send "weird" parameters to your exes.
exemple :
```
PS> echoargs.exe --% %USERNAME%,this=$something{weird}
Arg 0 is <jason,this=$something{weird}>
``` |
13630559 | Adding up numbers in PowerShell | 7 | 2012-11-29 16:45:07 | <p>I am trying to add up two numbers in PowerShell. I have the input the user gives stored in <code>$Value1</code> and <code>$Value2</code>. However I can't find any way to actually add these numbers up. I tried using the <code>Measure-Object</code> cmdlet but I can't seem to get it to work.</p>
<p>How does one add up... | 79,064 | null | 2018-11-13 09:51:17 | 13,630,632 | 13 | 2012-11-29 16:48:51 | 69,590 | 2012-11-29 17:26:00 | https://stackoverflow.com/q/13630559 | https://stackoverflow.com/a/13630632 | <pre><code>PS H:\> $value1 = 10
PS H:\> $value2 = 10
PS H:\> $value1 + $value2
20
</code></pre>
<p>If your numbers are stored as strings then you'll need to cast them to integers like this:</p>
<pre><code>PS H:\> $value1 = "10"
PS H:\> $value2 = "20"
PS H:\> [int]$value1 + [int]$value2
30
</code></p... | <pre><code>PS H:\> $value1 = 10 PS H:\> $value2 = 10 PS H:\> $value1 + $value2 20 </code></pre> <p>If your numbers are stored as strings then you'll need to cast them to integers like this:</p> <pre><code>PS H:\> $value1 = "10" PS H:\> $value2 = "20" PS H:\> [int]$value1 + [int]$value2 30 </code></p... | 390, 526 | powershell, shell | <h1>Adding up numbers in PowerShell</h1>
<p>I am trying to add up two numbers in PowerShell. I have the input the user gives stored in <code>$Value1</code> and <code>$Value2</code>. However I can't find any way to actually add these numbers up. I tried using the <code>Measure-Object</code> cmdlet but I can't seem to ge... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,504 | bash | # Adding up numbers in PowerShell
I am trying to add up two numbers in PowerShell. I have the input the user gives stored in `$Value1` and `$Value2`. However I can't find any way to actually add these numbers up. I tried using the `Measure-Object` cmdlet but I can't seem to get it to work.
How does one add up/substra... | ```
PS H:\> $value1 = 10
PS H:\> $value2 = 10
PS H:\> $value1 + $value2
20
```
If your numbers are stored as strings then you'll need to cast them to integers like this:
```
PS H:\> $value1 = "10"
PS H:\> $value2 = "20"
PS H:\> [int]$value1 + [int]$value2
30
``` |
13555834 | how to use vim to open every .txt file under a directory (with Bash) | 7 | 2012-11-25 21:46:57 | <p>I am trying the following to use a <code>vim</code> to open every <code>txt</code> file under current directory. </p>
<pre><code>find . -name "*.txt" -print | while read aline; do
read -p "start spellchecking fine: $aline" sth
vim $aline
done
</code></pre>
<p>Running it in <code>bash</code> complains with </p>... | 1,881 | 486,720 | 2014-04-27 10:53:09 | 13,555,918 | 13 | 2012-11-25 21:55:05 | 140,750 | 2012-11-25 22:00:09 | https://stackoverflow.com/q/13555834 | https://stackoverflow.com/a/13555918 | <p>Try:</p>
<pre><code>vim $( find . -name "*.txt" )
</code></pre>
<p>To fix your solution, you can (probably) do:</p>
<pre><code>find . -name "*.txt" -print | while read aline; do
read -p "start spellchecking fine: $aline" sth < /dev/tty
vim $aline < /dev/tty
done
</code></pre>
<p>The problem is ... | <p>Try:</p> <pre><code>vim $( find . -name "*.txt" ) </code></pre> <p>To fix your solution, you can (probably) do:</p> <pre><code>find . -name "*.txt" -print | while read aline; do read -p "start spellchecking fine: $aline" sth < /dev/tty vim $aline < /dev/tty done </code></pre> <p>The problem is ... | 370, 387, 17310 | bash, vim, while-loop | <h1>how to use vim to open every .txt file under a directory (with Bash)</h1>
<p>I am trying the following to use a <code>vim</code> to open every <code>txt</code> file under current directory. </p>
<pre><code>find . -name "*.txt" -print | while read aline; do
read -p "start spellchecking fine: $aline" sth
vim $al... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,505 | bash | # how to use vim to open every .txt file under a directory (with Bash)
I am trying the following to use a `vim` to open every `txt` file under current directory.
```
find . -name "*.txt" -print | while read aline; do
read -p "start spellchecking fine: $aline" sth
vim $aline
done
```
Running it in `bash` complain... | Try:
```
vim $( find . -name "*.txt" )
```
To fix your solution, you can (probably) do:
```
find . -name "*.txt" -print | while read aline; do
read -p "start spellchecking fine: $aline" sth < /dev/tty
vim $aline < /dev/tty
done
```
The problem is that the entire while loop is taking its input from find,... |
13059845 | C style arithmetic with floating point values in Bash | 7 | 2012-10-25 00:21:37 | <p>How can I have the right result from this bash script?</p>
<pre><code>#!/bin/bash
echo $(( 1/2 ))
</code></pre>
<p>I get <code>0</code> as result! So I tried to use these but without success:</p>
<pre><code>$ echo $(( 1/2.0 ))
bash: 1/2.0 : syntax error: invalid arithmetic operator (error token is ".0 ")
$ echo $... | 4,639 | 954,485 | 2018-11-13 18:07:56 | 13,059,861 | 13 | 2012-10-25 00:23:27 | 465,183 | 2013-10-17 20:24:52 | https://stackoverflow.com/q/13059845 | https://stackoverflow.com/a/13059861 | <p><a href="/questions/tagged/bash" class="post-tag" title="show questions tagged 'bash'" rel="tag">bash</a> is not the right tool alone to use <em>floats</em>, you should use <a href="/questions/tagged/bc" class="post-tag" title="show questions tagged 'bc'" rel="tag">bc</a> with it :</p>
<pre><code>bc <<< "s... | <p><a href="/questions/tagged/bash" class="post-tag" title="show questions tagged 'bash'" rel="tag">bash</a> is not the right tool alone to use <em>floats</em>, you should use <a href="/questions/tagged/bc" class="post-tag" title="show questions tagged 'bc'" rel="tag">bc</a> with it :</p> <pre><code>bc <<< "s... | 305, 387, 5481 | arithmetic-expressions, bash, floating-point | <h1>C style arithmetic with floating point values in Bash</h1>
<p>How can I have the right result from this bash script?</p>
<pre><code>#!/bin/bash
echo $(( 1/2 ))
</code></pre>
<p>I get <code>0</code> as result! So I tried to use these but without success:</p>
<pre><code>$ echo $(( 1/2.0 ))
bash: 1/2.0 : syntax err... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,506 | bash | # C style arithmetic with floating point values in Bash
How can I have the right result from this bash script?
```
#!/bin/bash
echo $(( 1/2 ))
```
I get `0` as result! So I tried to use these but without success:
```
$ echo $(( 1/2.0 ))
bash: 1/2.0 : syntax error: invalid arithmetic operator (error token is ".0 ")
... | [bash](/questions/tagged/bash "show questions tagged 'bash'") is not the right tool alone to use *floats*, you should use [bc](/questions/tagged/bc "show questions tagged 'bc'") with it :
```
bc <<< "scale=2; 1/2"
.50
```
If you need to store the result in a variable :
```
res=$(bc <<< "scale=2; 1/2")
echo $res
``` |
12409619 | how can i make awk process the BEGIN block for each file it parses? | 7 | 2012-09-13 15:21:20 | <p>i have an <code>awk</code> script that i'm running against a pair of files. i'm calling it like this:</p>
<p><code>awk -f script.awk file1 file2</code></p>
<p>script.awk looks something like this:</p>
<pre><code>BEGIN {FS=":"}
{ if( NR == 1 )
{
var=$2
FS=" "
}
else print var,"|",$0
}
</co... | 2,647 | 1,599,114 | 2018-10-08 15:09:41 | 12,410,003 | 13 | 2012-09-13 15:41:22 | 1,331,399 | 2018-10-08 08:14:29 | https://stackoverflow.com/q/12409619 | https://stackoverflow.com/a/12410003 | <p>If you're using <code>gawk</code> version 4 or later there's the <code>BEGINFILE</code> block. From the manual:</p>
<blockquote>
<p>BEGINFILE and ENDFILE are additional special patterns whose bodies are executed before reading the first
record of each command line input file and after reading the last rec... | <p>If you're using <code>gawk</code> version 4 or later there's the <code>BEGINFILE</code> block. From the manual:</p> <blockquote> <p>BEGINFILE and ENDFILE are additional special patterns whose bodies are executed before reading the first record of each command line input file and after reading the last rec... | 387, 990, 1731 | awk, bash, cygwin | <h1>how can i make awk process the BEGIN block for each file it parses?</h1>
<p>i have an <code>awk</code> script that i'm running against a pair of files. i'm calling it like this:</p>
<p><code>awk -f script.awk file1 file2</code></p>
<p>script.awk looks something like this:</p>
<pre><code>BEGIN {FS=":"}
{ if( NR ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,507 | bash | # how can i make awk process the BEGIN block for each file it parses?
i have an `awk` script that i'm running against a pair of files. i'm calling it like this:
`awk -f script.awk file1 file2`
script.awk looks something like this:
```
BEGIN {FS=":"}
{ if( NR == 1 )
{
var=$2
FS=" "
}
else pri... | If you're using `gawk` version 4 or later there's the `BEGINFILE` block. From the manual:
> BEGINFILE and ENDFILE are additional special patterns whose bodies are executed before reading the first
> record of each command line input file and after reading the last record of each file. Inside the BEGINFILE
> rule, the ... |
12224804 | How to set ANT_HOME on Ubuntu Desktop 12.04? | 7 | 2012-09-01 04:05:47 | <p>It looks like Ubuntu uses <code>~/.bashrc</code>, <code>~/.bash_profile</code>, <code>~/.pam_profile</code>, <code>/etc/environment</code>, and <code>/etc/profile</code> in very similar ways. I'd like to be able to add a configuration to one of these (which ever is the appropriate one) to set <code>ANT_HOME</code> t... | 31,231 | 892,029 | 2014-02-26 08:31:41 | 12,224,878 | 13 | 2012-09-01 04:24:39 | 482,628 | 2012-09-01 04:24:39 | https://stackoverflow.com/q/12224804 | https://stackoverflow.com/a/12224878 | <p><strong>For global settings, system-wide environment variables</strong></p>
<ul>
<li>Use <code>/etc/environment</code> </li>
<li>don't use <code>/etc/profile</code>, or <code>/etc/bash.bashrc</code></li>
</ul>
<p>From <a href="https://help.ubuntu.com/community/EnvironmentVariables">this</a> page :</p>
<blockquote... | <p><strong>For global settings, system-wide environment variables</strong></p> <ul> <li>Use <code>/etc/environment</code> </li> <li>don't use <code>/etc/profile</code>, or <code>/etc/bash.bashrc</code></li> </ul> <p>From <a href="https://help.ubuntu.com/community/EnvironmentVariables">this</a> page :</p> <blockquote... | 17, 142, 387, 549, 9013 | ant, bash, environment-variables, java, ubuntu | <h1>How to set ANT_HOME on Ubuntu Desktop 12.04?</h1>
<p>It looks like Ubuntu uses <code>~/.bashrc</code>, <code>~/.bash_profile</code>, <code>~/.pam_profile</code>, <code>/etc/environment</code>, and <code>/etc/profile</code> in very similar ways. I'd like to be able to add a configuration to one of these (which ever ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,508 | bash | # How to set ANT_HOME on Ubuntu Desktop 12.04?
It looks like Ubuntu uses `~/.bashrc`, `~/.bash_profile`, `~/.pam_profile`, `/etc/environment`, and `/etc/profile` in very similar ways. I'd like to be able to add a configuration to one of these (which ever is the appropriate one) to set `ANT_HOME` to be the absolute pat... | **For global settings, system-wide environment variables**
- Use `/etc/environment`
- don't use `/etc/profile`, or `/etc/bash.bashrc`
From [this](https://help.ubuntu.com/community/EnvironmentVariables) page :
> `/etc/environment` [...] is
> specifically meant for system-wide
> environment variable settings. It is
> ... |
11523809 | How can I extract a tag's attribute value from an HTML file? | 7 | 2012-07-17 13:43:24 | <p>I know, don't parse using curl, grep and sed. But I am looking for an easy approach, not a very safe one.</p>
<p>So I get an HTML file with curl, from which I need a value of a certain attribute from a tag. I use grep to get me the line where it says <code>token</code>. This only occurs once.
This gives me a whole ... | 20,054 | 338,476 | 2015-01-22 02:41:57 | 11,523,965 | 13 | 2012-07-17 13:51:56 | 390,913 | 2012-07-17 13:51:56 | https://stackoverflow.com/q/11523809 | https://stackoverflow.com/a/11523965 | <p>There's no need to grep:</p>
<pre><code>sed -n '/token/s/.*name="ltoken"\s\+value="\([^"]\+\).*/\1/p' input_file
</code></pre>
| <p>There's no need to grep:</p> <pre><code>sed -n '/token/s/.*name="ltoken"\s\+value="\([^"]\+\).*/\1/p' input_file </code></pre> | 18, 387 | bash, regex | <h1>How can I extract a tag's attribute value from an HTML file?</h1>
<p>I know, don't parse using curl, grep and sed. But I am looking for an easy approach, not a very safe one.</p>
<p>So I get an HTML file with curl, from which I need a value of a certain attribute from a tag. I use grep to get me the line where it ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,509 | bash | # How can I extract a tag's attribute value from an HTML file?
I know, don't parse using curl, grep and sed. But I am looking for an easy approach, not a very safe one.
So I get an HTML file with curl, from which I need a value of a certain attribute from a tag. I use grep to get me the line where it says `token`. Th... | There's no need to grep:
```
sed -n '/token/s/.*name="ltoken"\s\+value="\([^"]\+\).*/\1/p' input_file
``` |
11235362 | Which Windows Shell command will print a file content on the standard output (like cat in Linux)? | 7 | 2012-06-27 21:57:04 | <p>Which Windows Shell command will print a file content on the standard output (like cat in Linux) ?</p>
<p>With Google, Stackoverflow, etc, I just could not find a solution, but I am sure, there is an easy one.</p>
| 10,216 | 1,406,176 | 2017-02-24 02:36:05 | 11,235,376 | 13 | 2012-06-27 21:58:22 | 38,206 | 2012-06-27 21:58:22 | https://stackoverflow.com/q/11235362 | https://stackoverflow.com/a/11235376 | <p>The command is: <code>type <filename></code></p>
<p>However, if you want to Unix-fy your Windows shell there are <a href="http://unxutils.sourceforge.net/">Win32 ports</a> of most of the command Unix style commands. </p>
| <p>The command is: <code>type <filename></code></p> <p>However, if you want to Unix-fy your Windows shell there are <a href="http://unxutils.sourceforge.net/">Win32 ports</a> of most of the command Unix style commands. </p> | 64, 390, 22820 | cat, shell, windows | <h1>Which Windows Shell command will print a file content on the standard output (like cat in Linux)?</h1>
<p>Which Windows Shell command will print a file content on the standard output (like cat in Linux) ?</p>
<p>With Google, Stackoverflow, etc, I just could not find a solution, but I am sure, there is an easy one.... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,510 | bash | # Which Windows Shell command will print a file content on the standard output (like cat in Linux)?
Which Windows Shell command will print a file content on the standard output (like cat in Linux) ?
With Google, Stackoverflow, etc, I just could not find a solution, but I am sure, there is an easy one. | The command is: `type <filename>`
However, if you want to Unix-fy your Windows shell there are [Win32 ports](http://unxutils.sourceforge.net/) of most of the command Unix style commands. |
11132763 | Linux - get text from second tab | 7 | 2012-06-21 06:35:10 | <p>Suppose that we have file like this:</p>
<blockquote>
<p>sometext11 sometext12 sometext13
sometext21 sometext22 sometext23</p>
</blockquote>
<p>Texts are separated by tabs and we know sometext from column 1 but want to get text from column 2.
I know I can get line by:</p>
<pre><code>grep 'sometext... | 25,407 | 932,965 | 2014-05-20 06:54:40 | 11,135,625 | 13 | 2012-06-21 09:49:34 | 297,323 | 2012-06-21 09:49:34 | https://stackoverflow.com/q/11132763 | https://stackoverflow.com/a/11135625 | <p>awk:</p>
<pre><code>awk '{print $2}' file.txt
</code></pre>
<p>cut:</p>
<pre><code>cut -f2 file.txt
</code></pre>
<p>bash:</p>
<pre><code>while read -a A; do echo ${A[1]}; done < file.txt
</code></pre>
<p>perl:</p>
<pre><code>perl -lane 'print $F[1]' file.txt
</code></pre>
<p>If you know the string you ar... | <p>awk:</p> <pre><code>awk '{print $2}' file.txt </code></pre> <p>cut:</p> <pre><code>cut -f2 file.txt </code></pre> <p>bash:</p> <pre><code>while read -a A; do echo ${A[1]}; done < file.txt </code></pre> <p>perl:</p> <pre><code>perl -lane 'print $F[1]' file.txt </code></pre> <p>If you know the string you ar... | 58, 387, 1469 | bash, linux, text | <h1>Linux - get text from second tab</h1>
<p>Suppose that we have file like this:</p>
<blockquote>
<p>sometext11 sometext12 sometext13
sometext21 sometext22 sometext23</p>
</blockquote>
<p>Texts are separated by tabs and we know sometext from column 1 but want to get text from column 2.
I know I can g... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,511 | bash | # Linux - get text from second tab
Suppose that we have file like this:
> sometext11 sometext12 sometext13
> sometext21 sometext22 sometext23
Texts are separated by tabs and we know sometext from column 1 but want to get text from column 2.
I know I can get line by:
```
grep 'sometext11' file.txt
```
How to get te... | awk:
```
awk '{print $2}' file.txt
```
cut:
```
cut -f2 file.txt
```
bash:
```
while read -a A; do echo ${A[1]}; done < file.txt
```
perl:
```
perl -lane 'print $F[1]' file.txt
```
If you know the string you are grepping for, you can use `grep`:
```
grep -o 'sometext12' file.txt
``` |
10736923 | Detect OS from Bash script and notify user | 7 | 2012-05-24 11:49:49 | <p>Using bash, I want to find the operating system and notify the user. I tried:</p>
<pre><code>OS='uname -s'
echo "$OS"
if [ "$OS" == 'Linux' ]; then
echo "Linux"
else
echo "Not Linux"
fi
</code></pre>
<p>I just get</p>
<pre><code>uname -s
Not Linux
</code></pre>
<p>on the terminal, which is wrong. How d... | 13,178 | 1,173,913 | 2014-10-22 06:20:08 | 10,736,950 | 13 | 2012-05-24 11:52:01 | 140,750 | 2012-05-24 11:52:01 | https://stackoverflow.com/q/10736923 | https://stackoverflow.com/a/10736950 | <p>Rather than single quotes, you probably meant to use backticks:</p>
<pre><code>OS=`uname -s`
</code></pre>
<p>but you really want</p>
<pre><code>OS=$(uname -s)
</code></pre>
<p>Also, rather than an if statment, which will eventually become an if/else series, you might consider using case:</p>
<pre><code>case $(... | <p>Rather than single quotes, you probably meant to use backticks:</p> <pre><code>OS=`uname -s` </code></pre> <p>but you really want</p> <pre><code>OS=$(uname -s) </code></pre> <p>Also, rather than an if statment, which will eventually become an if/else series, you might consider using case:</p> <pre><code>case $(... | 139, 387, 5163, 13106 | bash, string, system, uname | <h1>Detect OS from Bash script and notify user</h1>
<p>Using bash, I want to find the operating system and notify the user. I tried:</p>
<pre><code>OS='uname -s'
echo "$OS"
if [ "$OS" == 'Linux' ]; then
echo "Linux"
else
echo "Not Linux"
fi
</code></pre>
<p>I just get</p>
<pre><code>uname -s
Not Linux
</co... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,512 | bash | # Detect OS from Bash script and notify user
Using bash, I want to find the operating system and notify the user. I tried:
```
OS='uname -s'
echo "$OS"
if [ "$OS" == 'Linux' ]; then
echo "Linux"
else
echo "Not Linux"
fi
```
I just get
```
uname -s
Not Linux
```
on the terminal, which is wrong. How do I c... | Rather than single quotes, you probably meant to use backticks:
```
OS=`uname -s`
```
but you really want
```
OS=$(uname -s)
```
Also, rather than an if statment, which will eventually become an if/else series, you might consider using case:
```
case $( uname -s ) in
Linux) echo Linux;;
*) echo other;;
esac
``... |
10161162 | metadata editing in bash linux for multimedia files(not images) in linux | 7 | 2012-04-15 10:20:07 | <p>I've searched across stackoverflow, and I've been on google and also duckduckgo and no one seems to have a nice way for me to do this.</p>
<p>The only tool that seems to maybe have worked was Exiftool which only has the read ability for ogg files(which is what I'm using at the moment). I'd like some way to do this ... | 7,458 | 327,544 | 2012-04-15 13:53:14 | 10,162,208 | 13 | 2012-04-15 12:57:29 | 313,821 | 2012-04-15 13:53:14 | https://stackoverflow.com/q/10161162 | https://stackoverflow.com/a/10162208 | <p><code>ID3</code> tags are MP3 specific. For Ogg Vorbis comment field specifications, see: <a href="http://www.xiph.org/vorbis/doc/v-comment.html">Field Names</a> </p>
<p><code>vorbiscomment</code> (package <em>vorbis-tools</em>) can modify and query <code>ogg</code> tag info.<br>
<code>mp3info</code> is one of ... | <p><code>ID3</code> tags are MP3 specific. For Ogg Vorbis comment field specifications, see: <a href="http://www.xiph.org/vorbis/doc/v-comment.html">Field Names</a> </p> <p><code>vorbiscomment</code> (package <em>vorbis-tools</em>) can modify and query <code>ogg</code> tag info.<br> <code>mp3info</code> is one of ... | 58, 387, 3703, 3794, 13681 | bash, exif, linux, metadata, ogg | <h1>metadata editing in bash linux for multimedia files(not images) in linux</h1>
<p>I've searched across stackoverflow, and I've been on google and also duckduckgo and no one seems to have a nice way for me to do this.</p>
<p>The only tool that seems to maybe have worked was Exiftool which only has the read ability f... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,513 | bash | # metadata editing in bash linux for multimedia files(not images) in linux
I've searched across stackoverflow, and I've been on google and also duckduckgo and no one seems to have a nice way for me to do this.
The only tool that seems to maybe have worked was Exiftool which only has the read ability for ogg files(whi... | `ID3` tags are MP3 specific. For Ogg Vorbis comment field specifications, see: [Field Names](http://www.xiph.org/vorbis/doc/v-comment.html)
`vorbiscomment` (package *vorbis-tools*) can modify and query `ogg` tag info.
`mp3info` is one of many tools to work wirh `mp3` tags.
---
# .ogg
```
# Clear all info
printf '... |
9593287 | Execute shellcode by casting to function pointer in Visual C++ | 7 | 2012-03-06 22:57:41 | <p>In gcc this works fine. The code goes something like:</p>
<pre><code>unsigned char b[50] = "\xda\xd1 ... \x0"; //some shellcode with terminating \x0
( (void(*)())b )(); //cast b to function pointer from void to void, then run it
</code></pre>
<p>But when this is put in Visual C++, it spits out this error message:<... | 14,519 | 1,253,415 | 2012-03-20 19:31:19 | 9,593,583 | 13 | 2012-03-06 23:29:14 | 916,657 | 2012-03-06 23:46:07 | https://stackoverflow.com/q/9593287 | https://stackoverflow.com/a/9593583 | <p>A proper debugger will tell you what's going wrong. I can only guess that your code is causing an access violation because the buffer you want to jump to is not executable.</p>
<p>Probably you're on a default-<a href="http://en.wikipedia.org/wiki/Data_Execution_Prevention" rel="noreferrer">DEP</a>-enabled system li... | <p>A proper debugger will tell you what's going wrong. I can only guess that your code is causing an access violation because the buffer you want to jump to is not executable.</p> <p>Probably you're on a default-<a href="http://en.wikipedia.org/wiki/Data_Execution_Prevention" rel="noreferrer">DEP</a>-enabled system li... | 10, 2754, 78469 | c++, casting, shellcode | <h1>Execute shellcode by casting to function pointer in Visual C++</h1>
<p>In gcc this works fine. The code goes something like:</p>
<pre><code>unsigned char b[50] = "\xda\xd1 ... \x0"; //some shellcode with terminating \x0
( (void(*)())b )(); //cast b to function pointer from void to void, then run it
</code></pre>
... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,514 | bash | # Execute shellcode by casting to function pointer in Visual C++
In gcc this works fine. The code goes something like:
```
unsigned char b[50] = "\xda\xd1 ... \x0"; //some shellcode with terminating \x0
( (void(*)())b )(); //cast b to function pointer from void to void, then run it
```
But when this is put in Visual... | A proper debugger will tell you what's going wrong. I can only guess that your code is causing an access violation because the buffer you want to jump to is not executable.
Probably you're on a default-[DEP](http://en.wikipedia.org/wiki/Data_Execution_Prevention)-enabled system like Vista or 7, so you have to make sur... |
8949079 | Unable to understand [-t 0] inside shell script | 7 | 2012-01-20 23:17:05 | <p><a href="https://gist.github.com/318247" rel="nofollow noreferrer">This browser gist</a> by defunkt github user starts with this shell expression</p>
<pre><code>if [ -t 0 ]; then ...
</code></pre>
<p>What is the meaning of this line of code?</p>
<p><strong>UPDATE:</strong> could you also explain why i need this chec... | 4,095 | 204,159 | 2022-12-15 14:53:20 | 8,949,099 | 13 | 2012-01-20 23:20:09 | 35,092 | 2019-09-30 16:44:54 | https://stackoverflow.com/q/8949079 | https://stackoverflow.com/a/8949099 | <ul>
<li><code>[</code> and <code>]</code> invokes <code>test</code></li>
<li><code>-t</code> makes the <code>test</code> test a file descriptor to see if it's a terminal</li>
<li><code>0</code> is the file descriptor for STDIN.</li>
</ul>
<p>So that says</p>
<pre class="lang-none prettyprint-override"><code>if STDIN... | <ul> <li><code>[</code> and <code>]</code> invokes <code>test</code></li> <li><code>-t</code> makes the <code>test</code> test a file descriptor to see if it's a terminal</li> <li><code>0</code> is the file descriptor for STDIN.</li> </ul> <p>So that says</p> <pre class="lang-none prettyprint-override"><code>if STDIN... | 390 | shell | <h1>Unable to understand [-t 0] inside shell script</h1>
<p><a href="https://gist.github.com/318247" rel="nofollow noreferrer">This browser gist</a> by defunkt github user starts with this shell expression</p>
<pre><code>if [ -t 0 ]; then ...
</code></pre>
<p>What is the meaning of this line of code?</p>
<p><strong>UPD... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,515 | bash | # Unable to understand [-t 0] inside shell script
[This browser gist](https://gist.github.com/318247) by defunkt github user starts with this shell expression
```
if [ -t 0 ]; then ...
```
What is the meaning of this line of code?
**UPDATE:** could you also explain why i need this check before doing anything else?
... | - `[` and `]` invokes `test`
- `-t` makes the `test` test a file descriptor to see if it's a terminal
- `0` is the file descriptor for STDIN.
So that says
```
if STDIN is a terminal then ...
```
### Motivation
I'd have to read the whole script to know for sure, but usually it's because the script wants to do someth... |
8563636 | Export certificate from IIS using PowerShell | 7 | 2011-12-19 15:37:32 | <p>How do I export a self-signed certificate from <a href="http://en.wikipedia.org/wiki/Internet_Information_Services" rel="noreferrer">IIS</a> 7 using PowerShell?</p>
| 8,793 | 1,106,196 | 2015-06-28 16:21:26 | 8,563,823 | 13 | 2011-12-19 15:52:02 | 978,511 | 2015-06-28 16:21:26 | https://stackoverflow.com/q/8563636 | https://stackoverflow.com/a/8563823 | <pre><code>dir cert:\localmachine\my | Where-Object { $_.hasPrivateKey } | Foreach-Object { [system.IO.file]::WriteAllBytes("c:\$($_.Subject).pfx", ($_.Export('PFX', 'secret')) ) }
</code></pre>
<p>Source: <em><a href="http://powershell.com/cs/blogs/tips/archive/2009/10/20/exporting-certificate-with-private-key.... | <pre><code>dir cert:\localmachine\my | Where-Object { $_.hasPrivateKey } | Foreach-Object { [system.IO.file]::WriteAllBytes("c:\$($_.Subject).pfx", ($_.Export('PFX', 'secret')) ) } </code></pre> <p>Source: <em><a href="http://powershell.com/cs/blogs/tips/archive/2009/10/20/exporting-certificate-with-private-key.... | 215, 526 | iis, powershell | <h1>Export certificate from IIS using PowerShell</h1>
<p>How do I export a self-signed certificate from <a href="http://en.wikipedia.org/wiki/Internet_Information_Services" rel="noreferrer">IIS</a> 7 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 | 10,516 | bash | # Export certificate from IIS using PowerShell
How do I export a self-signed certificate from [IIS](http://en.wikipedia.org/wiki/Internet_Information_Services) 7 using PowerShell? | ```
dir cert:\localmachine\my | Where-Object { $_.hasPrivateKey } | Foreach-Object { [system.IO.file]::WriteAllBytes("c:\$($_.Subject).pfx", ($_.Export('PFX', 'secret')) ) }
```
Source: *[Exporting Certificate With Private Key](http://powershell.com/cs/blogs/tips/archive/2009/10/20/exporting-certificate-with-pri... |
8168676 | Does file ".bash_history" always record every command I ever issue? | 7 | 2011-11-17 14:23:51 | <p>I'd like to be able to look through my command history (all the way back to the beginning of the user).</p>
<p>Is there any guarantee that file <em>.bash_history</em> will continue to be appended to?</p>
<p>If there is a limit where the file will start to be truncated (hopefully from the beginning), is there a way t... | 13,989 | 340,947 | 2021-08-06 17:18:41 | 8,168,723 | 13 | 2011-11-17 14:27:03 | 1,023,815 | 2021-08-06 17:18:41 | https://stackoverflow.com/q/8168676 | https://stackoverflow.com/a/8168723 | <p>There are a number of environment variables that control how history works in Bash. Relevant excerpt from bash manpage follows:</p>
<pre class="lang-none prettyprint-override"><code>HISTCONTROL
A colon-separated list of values controlling how commands are saved on the history list. If the list of values incl... | <p>There are a number of environment variables that control how history works in Bash. Relevant excerpt from bash manpage follows:</p> <pre class="lang-none prettyprint-override"><code>HISTCONTROL A colon-separated list of values controlling how commands are saved on the history list. If the list of values incl... | 58, 387 | bash, linux | <h1>Does file ".bash_history" always record every command I ever issue?</h1>
<p>I'd like to be able to look through my command history (all the way back to the beginning of the user).</p>
<p>Is there any guarantee that file <em>.bash_history</em> will continue to be appended to?</p>
<p>If there is a limit where the fil... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,517 | bash | # Does file ".bash_history" always record every command I ever issue?
I'd like to be able to look through my command history (all the way back to the beginning of the user).
Is there any guarantee that file *.bash_history* will continue to be appended to?
If there is a limit where the file will start to be truncated... | There are a number of environment variables that control how history works in Bash. Relevant excerpt from bash manpage follows:
```
HISTCONTROL
A colon-separated list of values controlling how commands are saved on the history list. If the list of values includes ignorespace, lines which
begin with ... |
7639186 | How to find a pattern and surrounding content in a very large SINGLE line file? | 7 | 2011-10-03 18:38:49 | <p>I have a very large file 100Mb+ where all the content is on one line.
I wish to find a pattern in that file and a number of characters around that pattern.</p>
<p>For example I would like to call a command like the one below but where -A and -B are number of bytes not lines:</p>
<pre><code>cat very_large_file | gr... | 793 | 135,124 | 2011-10-03 20:19:06 | 7,639,241 | 13 | 2011-10-03 18:44:16 | 15,622 | 2011-10-03 18:44:16 | https://stackoverflow.com/q/7639186 | https://stackoverflow.com/a/7639241 | <p>You could try the -o option:</p>
<pre><code>-o, --only-matching
Show only the part of a matching line that matches PATTERN.
</code></pre>
<p>and use a regular expression to match your pattern and the 3 preceding/following characters i.e.</p>
<pre><code>grep -o -P ".{3}pattern.{3}" very_large_file
</code></... | <p>You could try the -o option:</p> <pre><code>-o, --only-matching Show only the part of a matching line that matches PATTERN. </code></pre> <p>and use a regular expression to match your pattern and the 3 preceding/following characters i.e.</p> <pre><code>grep -o -P ".{3}pattern.{3}" very_large_file </code></... | 387, 1357 | bash, parsing | <h1>How to find a pattern and surrounding content in a very large SINGLE line file?</h1>
<p>I have a very large file 100Mb+ where all the content is on one line.
I wish to find a pattern in that file and a number of characters around that pattern.</p>
<p>For example I would like to call a command like the one below bu... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,518 | bash | # How to find a pattern and surrounding content in a very large SINGLE line file?
I have a very large file 100Mb+ where all the content is on one line.
I wish to find a pattern in that file and a number of characters around that pattern.
For example I would like to call a command like the one below but where -A and -... | You could try the -o option:
```
-o, --only-matching
Show only the part of a matching line that matches PATTERN.
```
and use a regular expression to match your pattern and the 3 preceding/following characters i.e.
```
grep -o -P ".{3}pattern.{3}" very_large_file
```
In the example you gave, it would be
```
e... |
6922187 | How to fix Makefile syntax error when using wildcard on make clean? | 7 | 2011-08-03 05:47:05 | <p>I have a simple Makefile that just contains this one target. It looks like this:</p>
<pre><code>SHELL:=/bin/bash
clean:
rm !(*.tex|Makefile|*.pdf)
</code></pre>
<p>When I run this command in bash it works fine, i.e. it gives no errors and it removes the desired files. However when I run <code>make clean</code... | 2,989 | 451,761 | 2015-05-10 17:42:29 | 6,922,447 | 13 | 2011-08-03 06:21:15 | 855,954 | 2011-08-03 06:21:15 | https://stackoverflow.com/q/6922187 | https://stackoverflow.com/a/6922447 | <p>Change the <code>SHELL</code> line to </p>
<pre><code>SHELL:=/bin/bash -O extglob
</code></pre>
<p>The <code>extglob</code> option is not set by default, so you have to do that yourself.</p>
| <p>Change the <code>SHELL</code> line to </p> <pre><code>SHELL:=/bin/bash -O extglob </code></pre> <p>The <code>extglob</code> option is not set by default, so you have to do that yourself.</p> | 387, 390, 4301, 5997 | bash, makefile, shell, wildcard | <h1>How to fix Makefile syntax error when using wildcard on make clean?</h1>
<p>I have a simple Makefile that just contains this one target. It looks like this:</p>
<pre><code>SHELL:=/bin/bash
clean:
rm !(*.tex|Makefile|*.pdf)
</code></pre>
<p>When I run this command in bash it works fine, i.e. it gives no error... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,519 | bash | # How to fix Makefile syntax error when using wildcard on make clean?
I have a simple Makefile that just contains this one target. It looks like this:
```
SHELL:=/bin/bash
clean:
rm !(*.tex|Makefile|*.pdf)
```
When I run this command in bash it works fine, i.e. it gives no errors and it removes the desired file... | Change the `SHELL` line to
```
SHELL:=/bin/bash -O extglob
```
The `extglob` option is not set by default, so you have to do that yourself. |
6758860 | How to modify a file by using awk? | 7 | 2011-07-20 08:08:56 | <pre><code>awk '/<ul>/ {ul++} ul == 6 { getline } 1' /var/www/html/INFOSEC/english/test.html
</code></pre>
<p>if i run this line of code, the shell will not help me to modify the file, instead, it only output the result in the shell. Can any one help???thx</p>
| 13,027 | 1,280,996 | 2011-07-20 08:14:06 | 6,758,908 | 13 | 2011-07-20 08:14:06 | 406,323 | 2011-07-20 08:14:06 | https://stackoverflow.com/q/6758860 | https://stackoverflow.com/a/6758908 | <p>The simplest solution is to just send the output to a file; you might want to copy the file beforehand so you don't have to overwrite the file you're reading (which might otherwise lead to undesired behavior).</p>
<pre><code>cp test.html test.html.orig
awk 'your awk script here' test.html.orig >test.html
# and t... | <p>The simplest solution is to just send the output to a file; you might want to copy the file beforehand so you don't have to overwrite the file you're reading (which might otherwise lead to undesired behavior).</p> <pre><code>cp test.html test.html.orig awk 'your awk script here' test.html.orig >test.html # and t... | 387, 990 | awk, bash | <h1>How to modify a file by using awk?</h1>
<pre><code>awk '/<ul>/ {ul++} ul == 6 { getline } 1' /var/www/html/INFOSEC/english/test.html
</code></pre>
<p>if i run this line of code, the shell will not help me to modify the file, instead, it only output the result in the shell. Can any one help???thx</p>
| q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,520 | bash | # How to modify a file by using awk?
```
awk '/<ul>/ {ul++} ul == 6 { getline } 1' /var/www/html/INFOSEC/english/test.html
```
if i run this line of code, the shell will not help me to modify the file, instead, it only output the result in the shell. Can any one help???thx | The simplest solution is to just send the output to a file; you might want to copy the file beforehand so you don't have to overwrite the file you're reading (which might otherwise lead to undesired behavior).
```
cp test.html test.html.orig
awk 'your awk script here' test.html.orig >test.html
# and then optionally re... |
6665541 | Checking for null string in bash | 7 | 2011-07-12 14:11:11 | <p>Is there any difference between the following tests?</p>
<pre><code>[[ "$STRING" = "" ]] && exit 1;
[[ "x$STRING" = "x" ]] && exit 1;
[[ -z $STRING ]] && exit 1;
</code></pre>
| 8,863 | 211,659 | 2011-07-12 14:22:23 | 6,665,583 | 13 | 2011-07-12 14:14:27 | 694,014 | 2011-07-12 14:14:27 | https://stackoverflow.com/q/6665541 | https://stackoverflow.com/a/6665583 | <p>Nope, they are all the same. But couple of defensive habits to get into.</p>
<ul>
<li>You should quote the <code>$STRING</code> in the <code>-z</code> one as well</li>
<li>If you are running with the -u option (I always do) then you should reference the possibly optional variable as <code>${STRING-}</code> just in ... | <p>Nope, they are all the same. But couple of defensive habits to get into.</p> <ul> <li>You should quote the <code>$STRING</code> in the <code>-z</code> one as well</li> <li>If you are running with the -u option (I always do) then you should reference the possibly optional variable as <code>${STRING-}</code> just in ... | 58, 387 | bash, linux | <h1>Checking for null string in bash</h1>
<p>Is there any difference between the following tests?</p>
<pre><code>[[ "$STRING" = "" ]] && exit 1;
[[ "x$STRING" = "x" ]] && exit 1;
[[ -z $STRING ]] && exit 1;
</code></pre>
| q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,521 | bash | # Checking for null string in bash
Is there any difference between the following tests?
```
[[ "$STRING" = "" ]] && exit 1;
[[ "x$STRING" = "x" ]] && exit 1;
[[ -z $STRING ]] && exit 1;
``` | Nope, they are all the same. But couple of defensive habits to get into.
- You should quote the `$STRING` in the `-z` one as well
- If you are running with the -u option (I always do) then you should reference the possibly optional variable as `${STRING-}` just in case its not set at all |
6471090 | Join Arguments - Escape Spaces | 7 | 2011-06-24 16:50:12 | <p>Is there any easy way to "join" the arguments passed to a script? I'd like something similar to <code>$@</code>, but that passes the arguments at once.</p>
<p>For example, consider the following script:</p>
<pre><code>$/bin/bash
./my_program $@
</code></pre>
<p>When called as</p>
<pre><code>./script arg1 arg2 a... | 2,048 | 557,306 | 2016-01-25 21:29:42 | 6,471,153 | 13 | 2011-06-24 16:56:53 | 650,405 | 2011-06-24 16:56:53 | https://stackoverflow.com/q/6471090 | https://stackoverflow.com/a/6471153 | <p>Use this one:</p>
<pre><code>./my_program "$*"
</code></pre>
| <p>Use this one:</p> <pre><code>./my_program "$*" </code></pre> | 387, 2313 | arguments, bash | <h1>Join Arguments - Escape Spaces</h1>
<p>Is there any easy way to "join" the arguments passed to a script? I'd like something similar to <code>$@</code>, but that passes the arguments at once.</p>
<p>For example, consider the following script:</p>
<pre><code>$/bin/bash
./my_program $@
</code></pre>
<p>When called... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,522 | bash | # Join Arguments - Escape Spaces
Is there any easy way to "join" the arguments passed to a script? I'd like something similar to `$@`, but that passes the arguments at once.
For example, consider the following script:
```
$/bin/bash
./my_program $@
```
When called as
```
./script arg1 arg2 arg3
```
`my_program` ... | Use this one:
```
./my_program "$*"
``` |
5852643 | Piping in on the command line simulating a file? | 7 | 2011-05-02 01:11:26 | <p>I've seen the technique before, but don't know what it's called and forget the exact syntax. Let's say I need to pipe in a file to a program like: command < input-file. However, I want to directly pass these lines of the input file into the command without the intermediate input file. It looks something like this... | 4,296 | 449,511 | 2011-05-02 01:15:47 | 5,852,659 | 13 | 2011-05-02 01:14:37 | 207,248 | 2011-05-02 01:14:37 | https://stackoverflow.com/q/5852643 | https://stackoverflow.com/a/5852659 | <p>This is called <code>Process Substitution</code></p>
<pre><code>command < <(printf "%s\n" "file-line1" "file-line2" "file-line3")
</code></pre>
<p>With the above, <code>command</code> will think its being input a file with a name much like <code>/dev/fd/XX</code> where 'XX' is some number. As you mentioned, ... | <p>This is called <code>Process Substitution</code></p> <pre><code>command < <(printf "%s\n" "file-line1" "file-line2" "file-line3") </code></pre> <p>With the above, <code>command</code> will think its being input a file with a name much like <code>/dev/fd/XX</code> where 'XX' is some number. As you mentioned, ... | 387, 1231, 5813 | bash, command-line, pipe | <h1>Piping in on the command line simulating a file?</h1>
<p>I've seen the technique before, but don't know what it's called and forget the exact syntax. Let's say I need to pipe in a file to a program like: command < input-file. However, I want to directly pass these lines of the input file into the command without... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,523 | bash | # Piping in on the command line simulating a file?
I've seen the technique before, but don't know what it's called and forget the exact syntax. Let's say I need to pipe in a file to a program like: command < input-file. However, I want to directly pass these lines of the input file into the command without the interme... | This is called `Process Substitution`
```
command < <(printf "%s\n" "file-line1" "file-line2" "file-line3")
```
With the above, `command` will think its being input a file with a name much like `/dev/fd/XX` where 'XX' is some number. As you mentioned, this is a temporary file (actually a file descriptor) but it will ... |
5810296 | bash: find -exec and filenames | 7 | 2011-04-27 20:40:07 | <p>I want to strip the HTML out of few hundred files. </p>
<p>Here's the command I've started with:</p>
<pre><code>find -name *.html -exec w3m {} > w3m {}.html.out \;
</code></pre>
<p>The problem I've run into is that it created one single large .htm.out file (named {}.html.out) -- I want the file I'm using to b... | 3,522 | 2,764 | 2011-04-27 20:42:06 | 5,810,316 | 13 | 2011-04-27 20:42:06 | 20,862 | 2011-04-27 20:42:06 | https://stackoverflow.com/q/5810296 | https://stackoverflow.com/a/5810316 | <p>The redirection happens outside of <code>find</code>. Invoke a subshell.</p>
<pre><code>find -name *.html -exec bash -c 'w3m "$1" > w3m-"$1".html.out' w3mout {} \;
</code></pre>
| <p>The redirection happens outside of <code>find</code>. Invoke a subshell.</p> <pre><code>find -name *.html -exec bash -c 'w3m "$1" > w3m-"$1".html.out' w3mout {} \; </code></pre> | 387, 7932, 10193, 28569 | bash, exec, find, w3m | <h1>bash: find -exec and filenames</h1>
<p>I want to strip the HTML out of few hundred files. </p>
<p>Here's the command I've started with:</p>
<pre><code>find -name *.html -exec w3m {} > w3m {}.html.out \;
</code></pre>
<p>The problem I've run into is that it created one single large .htm.out file (named {}.htm... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,524 | bash | # bash: find -exec and filenames
I want to strip the HTML out of few hundred files.
Here's the command I've started with:
```
find -name *.html -exec w3m {} > w3m {}.html.out \;
```
The problem I've run into is that it created one single large .htm.out file (named {}.html.out) -- I want the file I'm using to be nam... | The redirection happens outside of `find`. Invoke a subshell.
```
find -name *.html -exec bash -c 'w3m "$1" > w3m-"$1".html.out' w3mout {} \;
``` |
5168616 | Powershell - How to search for Whole Words (or) Exact Matches | 7 | 2011-03-02 14:12:33 | <p>this is my requirement. </p>
<p>I need to find if a certain CSS classes is referenced in my Solution which has over 120 aspx pages. </p>
<p>This is the command that we wrote</p>
<pre><code>gci . -include *.aspx -recurse | select-string -pattern ".rtop" -caseSensitive >> D:\CSSResult.txt
</code></pre>
<p>Ho... | 34,979 | 182,978 | 2012-06-22 14:52:48 | 5,168,712 | 13 | 2011-03-02 14:19:33 | 20,670 | 2011-03-02 14:19:33 | https://stackoverflow.com/q/5168616 | https://stackoverflow.com/a/5168712 | <p>Try <code>select-string -pattern "\.rtop\b"</code>.</p>
<p>You need to escape the dot, or it will match any character; and the <code>\b</code> word boundary anchor ensures that the word does not continue after <code>rtop</code>.</p>
| <p>Try <code>select-string -pattern "\.rtop\b"</code>.</p> <p>You need to escape the dot, or it will match any character; and the <code>\b</code> word boundary anchor ensures that the word does not continue after <code>rtop</code>.</p> | 18, 526 | powershell, regex | <h1>Powershell - How to search for Whole Words (or) Exact Matches</h1>
<p>this is my requirement. </p>
<p>I need to find if a certain CSS classes is referenced in my Solution which has over 120 aspx pages. </p>
<p>This is the command that we wrote</p>
<pre><code>gci . -include *.aspx -recurse | select-string -patter... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,525 | bash | # Powershell - How to search for Whole Words (or) Exact Matches
this is my requirement.
I need to find if a certain CSS classes is referenced in my Solution which has over 120 aspx pages.
This is the command that we wrote
```
gci . -include *.aspx -recurse | select-string -pattern ".rtop" -caseSensitive >> D:\CSSRe... | Try `select-string -pattern "\.rtop\b"`.
You need to escape the dot, or it will match any character; and the `\b` word boundary anchor ensures that the word does not continue after `rtop`. |
4304631 | Rescheduling an at job | 7 | 2010-11-29 14:22:01 | <p>Is there a way to change the date of a job that has been issued with the unix <code>at</code> command?</p>
<p>I need to do this because my Application has scheduled too many jobs at the same time which will bring the machine to a grinding halt.</p>
| 5,484 | 305,910 | 2013-03-25 10:34:43 | 4,306,526 | 13 | 2010-11-29 17:52:50 | 26,428 | 2010-11-30 10:45:29 | https://stackoverflow.com/q/4304631 | https://stackoverflow.com/a/4306526 | <p>This is probably implementation dependent, but on my system I can rename the job like so:</p>
<pre><code>$ # Bash
$ sudo ls -l /var/spool/cron/atjobs
-rwx------ 1 username daemon 3782 Nov 29 11:24 a00078014854e8
$ atq
120 Mon Nov 29 11:44:00 2010 a username
$ printf "%x\n" $((16#14854e8 + 60*2)) # 2 hour del... | <p>This is probably implementation dependent, but on my system I can rename the job like so:</p> <pre><code>$ # Bash $ sudo ls -l /var/spool/cron/atjobs -rwx------ 1 username daemon 3782 Nov 29 11:24 a00078014854e8 $ atq 120 Mon Nov 29 11:44:00 2010 a username $ printf "%x\n" $((16#14854e8 + 60*2)) # 2 hour del... | 34, 390, 90171 | at-job, shell, unix | <h1>Rescheduling an at job</h1>
<p>Is there a way to change the date of a job that has been issued with the unix <code>at</code> command?</p>
<p>I need to do this because my Application has scheduled too many jobs at the same time which will bring the machine to a grinding halt.</p>
| q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,526 | bash | # Rescheduling an at job
Is there a way to change the date of a job that has been issued with the unix `at` command?
I need to do this because my Application has scheduled too many jobs at the same time which will bring the machine to a grinding halt. | This is probably implementation dependent, but on my system I can rename the job like so:
```
$ # Bash
$ sudo ls -l /var/spool/cron/atjobs
-rwx------ 1 username daemon 3782 Nov 29 11:24 a00078014854e8
$ atq
120 Mon Nov 29 11:44:00 2010 a username
$ printf "%x\n" $((16#14854e8 + 60*2)) # 2 hour delay
1485560
$ s... |
3542649 | CakePHP Console on Godaddy Hosting | 7 | 2010-08-22 18:08:08 | <p>I have been struggling to get my CakePHP site working on a Godaddy "grid hosting" account. My cake app is setup is hosted from a subdirectory on the account, and can be accessed via a subdomain. I had to adjust my .htaccess files to get this working, and now I need to get the CakePHP console working in this environm... | 3,441 | 13,800 | 2016-08-16 10:54:27 | 3,570,142 | 13 | 2010-08-25 20:58:14 | 13,800 | 2010-08-29 18:05:11 | https://stackoverflow.com/q/3542649 | https://stackoverflow.com/a/3570142 | <p>in the cake shell script (cake/console/cake) change</p>
<pre><code>exec php -q ${LIB}cake.php -working "${APP}" "$@"
</code></pre>
<p>to </p>
<pre><code>exec php -q -d register_argc_argv=1 ${LIB}cake.php -working "${APP}" "$@"
</code></pre>
<p>after this I found out that calling php like this happened to run the... | <p>in the cake shell script (cake/console/cake) change</p> <pre><code>exec php -q ${LIB}cake.php -working "${APP}" "$@" </code></pre> <p>to </p> <pre><code>exec php -q -d register_argc_argv=1 ${LIB}cake.php -working "${APP}" "$@" </code></pre> <p>after this I found out that calling php like this happened to run the... | 5, 58, 387, 3437 | bash, cakephp, linux, php | <h1>CakePHP Console on Godaddy Hosting</h1>
<p>I have been struggling to get my CakePHP site working on a Godaddy "grid hosting" account. My cake app is setup is hosted from a subdirectory on the account, and can be accessed via a subdomain. I had to adjust my .htaccess files to get this working, and now I need to get ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,527 | bash | # CakePHP Console on Godaddy Hosting
I have been struggling to get my CakePHP site working on a Godaddy "grid hosting" account. My cake app is setup is hosted from a subdirectory on the account, and can be accessed via a subdomain. I had to adjust my .htaccess files to get this working, and now I need to get the CakeP... | in the cake shell script (cake/console/cake) change
```
exec php -q ${LIB}cake.php -working "${APP}" "$@"
```
to
```
exec php -q -d register_argc_argv=1 ${LIB}cake.php -working "${APP}" "$@"
```
after this I found out that calling php like this happened to run the PHP 4 CLI. to fix this here is the final bash scrip... |
2588277 | How can I swap or replace multiple strings in code at the same time? | 7 | 2010-04-06 20:59:24 | <p>Given the following code sample:</p>
<pre><code>uint8_t i, in, ni;
i = in = 2; ni = 1;
while (2 == i > ni) in++;
</code></pre>
<p>How can I replace <code>i, in, and ni</code>, respectively with either <code>in, ni, and i</code> or <code>inni, inin, and nini</code> using emacs, vi, *nix commands, or anything els... | 1,843 | 290,128 | 2013-08-19 22:08:06 | 2,592,685 | 13 | 2010-04-07 13:17:22 | 16,240 | 2013-08-19 22:08:06 | https://stackoverflow.com/q/2588277 | https://stackoverflow.com/a/2592685 | <p>If I'm not mistaken, the solutions provided so far (using Perl and Vim) do not work correctly when any of the replacements is among the latter words to be replaced. In particular, none of the solutions works for the first example: "i" would be replaced with "in", which would then be incorrectly replaced with "ni" a... | <p>If I'm not mistaken, the solutions provided so far (using Perl and Vim) do not work correctly when any of the replacements is among the latter words to be replaced. In particular, none of the solutions works for the first example: "i" would be replaced with "in", which would then be incorrectly replaced with "ni" a... | 8, 293, 371, 387, 1086 | bash, c, emacs, refactoring, vi | <h1>How can I swap or replace multiple strings in code at the same time?</h1>
<p>Given the following code sample:</p>
<pre><code>uint8_t i, in, ni;
i = in = 2; ni = 1;
while (2 == i > ni) in++;
</code></pre>
<p>How can I replace <code>i, in, and ni</code>, respectively with either <code>in, ni, and i</code> or <co... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,528 | bash | # How can I swap or replace multiple strings in code at the same time?
Given the following code sample:
```
uint8_t i, in, ni;
i = in = 2; ni = 1;
while (2 == i > ni) in++;
```
How can I replace `i, in, and ni`, respectively with either `in, ni, and i` or `inni, inin, and nini` using emacs, vi, *nix commands, or any... | If I'm not mistaken, the solutions provided so far (using Perl and Vim) do not work correctly when any of the replacements is among the latter words to be replaced. In particular, none of the solutions works for the first example: "i" would be replaced with "in", which would then be incorrectly replaced with "ni" and t... |
2362154 | shell float number in expr | 7 | 2010-03-02 09:43:22 | <p>I'm trying to get a float number from this :</p>
<pre><code>totalmark=$(expr $sum / $subjects )
</code></pre>
<p>Is this correct?</p>
| 17,561 | 262,854 | 2010-03-04 11:34:30 | 2,362,611 | 13 | 2010-03-02 11:02:45 | 131,527 | 2010-03-02 11:02:45 | https://stackoverflow.com/q/2362154 | https://stackoverflow.com/a/2362611 | <p>bash doesn't support floats, use awk or bc/dc</p>
<p>eg awk</p>
<pre><code>totalmark=$(awk 'BEGIN{print $sum / $subjects}')
</code></pre>
<p>or bc</p>
<pre><code>totalmark=$(echo "scale=2;$sum/$subjects"|bc)
</code></pre>
<p>if you have the luxury to use different shells other than bash, try zsh or ksh</p>
<pr... | <p>bash doesn't support floats, use awk or bc/dc</p> <p>eg awk</p> <pre><code>totalmark=$(awk 'BEGIN{print $sum / $subjects}') </code></pre> <p>or bc</p> <pre><code>totalmark=$(echo "scale=2;$sum/$subjects"|bc) </code></pre> <p>if you have the luxury to use different shells other than bash, try zsh or ksh</p> <pr... | 387, 390 | bash, shell | <h1>shell float number in expr</h1>
<p>I'm trying to get a float number from this :</p>
<pre><code>totalmark=$(expr $sum / $subjects )
</code></pre>
<p>Is this correct?</p>
| q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,529 | bash | # shell float number in expr
I'm trying to get a float number from this :
```
totalmark=$(expr $sum / $subjects )
```
Is this correct? | bash doesn't support floats, use awk or bc/dc
eg awk
```
totalmark=$(awk 'BEGIN{print $sum / $subjects}')
```
or bc
```
totalmark=$(echo "scale=2;$sum/$subjects"|bc)
```
if you have the luxury to use different shells other than bash, try zsh or ksh
```
$ zsh -c 'echo $((4/1.3))'
3.0769230769230766
$ ksh -c 'echo... |
619649 | Passing an associative array from c# to Powershell | 7 | 2009-03-06 17:14:23 | <p>I'd like to pass an associative array from C# to Powershell. As an example I'd like to execute this powershell line of code:</p>
<pre><code>
PS C:\> get-command | select name, @{N="Foo";E={"Bar"}} -first 3
Name Foo
---- ... | 4,910 | 61,396 | 2009-03-06 19:45:36 | 620,165 | 13 | 2009-03-06 19:45:36 | 6,920 | 2009-03-06 19:45:36 | https://stackoverflow.com/q/619649 | https://stackoverflow.com/a/620165 | <p>Creating a pipeline through c# and creating a pipeline with native powershell script have one major difference that is actually quite subtle: the parameter binder.</p>
<p>if I write a version of your code in pure script, I will get the same error: the hashtable literal is treated as a string value.</p>
<pre><code>... | <p>Creating a pipeline through c# and creating a pipeline with native powershell script have one major difference that is actually quite subtle: the parameter binder.</p> <p>if I write a version of your code in pure script, I will get the same error: the hashtable literal is treated as a string value.</p> <pre><code>... | 9, 526, 2575 | associative-array, c#, powershell | <h1>Passing an associative array from c# to Powershell</h1>
<p>I'd like to pass an associative array from C# to Powershell. As an example I'd like to execute this powershell line of code:</p>
<pre><code>
PS C:\> get-command | select name, @{N="Foo";E={"Bar"}} -first 3
Name ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,530 | bash | # Passing an associative array from c# to Powershell
I'd like to pass an associative array from C# to Powershell. As an example I'd like to execute this powershell line of code:
```
PS C:\> get-command | select name, @{N="Foo";E={"Bar"}} -first 3
Name Foo
---- ... | Creating a pipeline through c# and creating a pipeline with native powershell script have one major difference that is actually quite subtle: the parameter binder.
if I write a version of your code in pure script, I will get the same error: the hashtable literal is treated as a string value.
```
ps> $ps = $ps.Command... |
295303 | CommonAppData in vbscript | 7 | 2008-11-17 10:49:39 | <p>A customer's application "AppName" has its configuration files stored in CommonAppData. </p>
<ul>
<li>Under Windows XP that is <code>C:\Documents and Settings\All Users\Application Data\AppName</code></li>
<li>Under Windows Vista that is <code>C:\ProgramData\AppName</code></li>
</ul>
<p>How do I get the correct fo... | 9,542 | 23,369 | 2019-08-05 11:05:56 | 295,319 | 13 | 2008-11-17 11:01:40 | 18,771 | 2019-08-05 11:05:56 | https://stackoverflow.com/q/295303 | https://stackoverflow.com/a/295319 | <pre><code>Const CommonAppData = &H23& ' the second & denotes a long integer '
Set objShell = CreateObject("Shell.Application")
Set objFolder = objShell.Namespace(CommonAppData)
Set objFolderItem = objFolder.Self
MsgBox objFolderItem.Name & ": " & objFolderItem.Path
</code></pre>
<p>The MSDN h... | <pre><code>Const CommonAppData = &H23& ' the second & denotes a long integer ' Set objShell = CreateObject("Shell.Application") Set objFolder = objShell.Namespace(CommonAppData) Set objFolderItem = objFolder.Self MsgBox objFolderItem.Name & ": " & objFolderItem.Path </code></pre> <p>The MSDN h... | 64, 494, 889, 8123, 16652 | special-folders, vbscript, winapi, windows, windows-shell | <h1>CommonAppData in vbscript</h1>
<p>A customer's application "AppName" has its configuration files stored in CommonAppData. </p>
<ul>
<li>Under Windows XP that is <code>C:\Documents and Settings\All Users\Application Data\AppName</code></li>
<li>Under Windows Vista that is <code>C:\ProgramData\AppName</code></li>
</... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,531 | bash | # CommonAppData in vbscript
A customer's application "AppName" has its configuration files stored in CommonAppData.
- Under Windows XP that is `C:\Documents and Settings\All Users\Application Data\AppName`
- Under Windows Vista that is `C:\ProgramData\AppName`
How do I get the correct foldername with VBScript? | ```
Const CommonAppData = &H23& ' the second & denotes a long integer '
Set objShell = CreateObject("Shell.Application")
Set objFolder = objShell.Namespace(CommonAppData)
Set objFolderItem = objFolder.Self
MsgBox objFolderItem.Name & ": " & objFolderItem.Path
```
The MSDN holds a page that lists the other [Shell ... |
72886868 | Alacritty delete line with Cmd + Backspace | 6 | 2022-07-06 16:17:30 | <p>Recently switched from Iterm to Alacritty for various reasons. One thing that I'm now realizing I used a lot is command + backspace to delete and entire line (Yes I'm aware of CTR + U, but that's not muscle memory for me). Is there a way to set up a shortcut for line clear in alacrity?</p>
| 4,216 | 18,192,482 | 2024-02-13 05:55:06 | 72,945,790 | 13 | 2022-07-12 00:07:13 | 12,957,340 | 2022-07-12 00:07:13 | https://stackoverflow.com/q/72886868 | https://stackoverflow.com/a/72945790 | <p>Adding the line <code> - { key: Back, mods: Command, chars: "\x15" }</code> to the alacritty.yml file will delete the entire line with "Cmd+Backspace" on macOS.</p>
<p>Also, here are some additional keybinding changes I've made to my alacritty setup that may make your life easier (per <a href="ht... | <p>Adding the line <code> - { key: Back, mods: Command, chars: "\x15" }</code> to the alacritty.yml file will delete the entire line with "Cmd+Backspace" on macOS.</p> <p>Also, here are some additional keybinding changes I've made to my alacritty setup that may make your life easier (per <a href="ht... | 369, 390, 1852, 146769 | alacritty, macos, shell, yaml | <h1>Alacritty delete line with Cmd + Backspace</h1>
<p>Recently switched from Iterm to Alacritty for various reasons. One thing that I'm now realizing I used a lot is command + backspace to delete and entire line (Yes I'm aware of CTR + U, but that's not muscle memory for me). Is there a way to set up a shortcut for li... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,532 | bash | # Alacritty delete line with Cmd + Backspace
Recently switched from Iterm to Alacritty for various reasons. One thing that I'm now realizing I used a lot is command + backspace to delete and entire line (Yes I'm aware of CTR + U, but that's not muscle memory for me). Is there a way to set up a shortcut for line clear ... | Adding the line `- { key: Back, mods: Command, chars: "\x15" }` to the alacritty.yml file will delete the entire line with "Cmd+Backspace" on macOS.
Also, here are some additional keybinding changes I've made to my alacritty setup that may make your life easier (per <https://github.com/alacritty/alacritty/issues/474#... |
70804147 | How to run bash script within VS Code? | 6 | 2022-01-21 16:00:59 | <p>I want to run bash script when I hit <code>F5</code> and see the results in the terminal like I can do with python scripts or whatever. I tried to do that with <code>Bash Debug</code> however it automatically goes to the debug mode and stops at the first step even if I do not put breakpoint. This is the launch confi... | 23,468 | 3,095,866 | 2024-07-04 09:12:06 | 72,097,548 | 13 | 2022-05-03 09:45:32 | 2,053,706 | 2022-09-21 03:58:58 | https://stackoverflow.com/q/70804147 | https://stackoverflow.com/a/72097548 | <p>I don't know about running <code>bash</code> in a <strong>debug mode</strong> (doesn't seem like you need those features based on your example) but you can easily get your script to run as a <em>Task</em> or <em>Build</em> option.</p>
<p>Place this at <code>.vscode/tasks.json</code> of your project dir</p>
<pre clas... | <p>I don't know about running <code>bash</code> in a <strong>debug mode</strong> (doesn't seem like you need those features based on your example) but you can easily get your script to run as a <em>Task</em> or <em>Build</em> option.</p> <p>Place this at <code>.vscode/tasks.json</code> of your project dir</p> <pre clas... | 387, 111608 | bash, visual-studio-code | <h1>How to run bash script within VS Code?</h1>
<p>I want to run bash script when I hit <code>F5</code> and see the results in the terminal like I can do with python scripts or whatever. I tried to do that with <code>Bash Debug</code> however it automatically goes to the debug mode and stops at the first step even if I... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,533 | bash | # How to run bash script within VS Code?
I want to run bash script when I hit `F5` and see the results in the terminal like I can do with python scripts or whatever. I tried to do that with `Bash Debug` however it automatically goes to the debug mode and stops at the first step even if I do not put breakpoint. This is... | I don't know about running `bash` in a **debug mode** (doesn't seem like you need those features based on your example) but you can easily get your script to run as a *Task* or *Build* option.
Place this at `.vscode/tasks.json` of your project dir
```
{
// See https://go.microsoft.com/fwlink/?LinkId=733558
//... |
68419132 | In Azure pipeline, how can Powershell make a task fail? | 6 | 2021-07-17 09:17:11 | <p>I am working on Azure Pipelines on a Windows Self hosted Agent.
I need my pipeline to run a PowerShell script and if the script is successful, the next stage do the deployment, else the task fails, we have to fix something and resume the task</p>
<p>I'll describe what the pipeline does since the start as it might he... | 13,433 | 2,362,196 | 2025-03-25 12:25:15 | 68,443,534 | 13 | 2021-07-19 15:55:33 | 2,362,196 | 2021-07-19 15:55:33 | https://stackoverflow.com/q/68419132 | https://stackoverflow.com/a/68443534 | <p>I was able to use these exit values to make the pipeline task succeed or failed:</p>
<pre><code>if($equal) {
# make pipeline to succeed
exit 0
}
else {
exit 1
}
</code></pre>
<p>I used the PowerShell script in its own stage instead of in a job and it worked, when the task fails, I can do required manual ... | <p>I was able to use these exit values to make the pipeline task succeed or failed:</p> <pre><code>if($equal) { # make pipeline to succeed exit 0 } else { exit 1 } </code></pre> <p>I used the PowerShell script in its own stage instead of in a job and it worked, when the task fails, I can do required manual ... | 81879, 139136 | azure-pipelines-yaml, azure-powershell | <h1>In Azure pipeline, how can Powershell make a task fail?</h1>
<p>I am working on Azure Pipelines on a Windows Self hosted Agent.
I need my pipeline to run a PowerShell script and if the script is successful, the next stage do the deployment, else the task fails, we have to fix something and resume the task</p>
<p>I'... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,534 | bash | # In Azure pipeline, how can Powershell make a task fail?
I am working on Azure Pipelines on a Windows Self hosted Agent.
I need my pipeline to run a PowerShell script and if the script is successful, the next stage do the deployment, else the task fails, we have to fix something and resume the task
I'll describe wha... | I was able to use these exit values to make the pipeline task succeed or failed:
```
if($equal) {
# make pipeline to succeed
exit 0
}
else {
exit 1
}
```
I used the PowerShell script in its own stage instead of in a job and it worked, when the task fails, I can do required manual actions and run the task ... |
64467425 | MD5-Checksum hashing with powershell for a whole directory | 6 | 2020-10-21 15:56:51 | <p>I'm trying to generate an MD5-Checksum with powershell for a whole directory.
On Linux there is a 1-liner that works just great, like this one:</p>
<p>$ tar -cf - somedir | md5sum</p>
<p>I learned that "tar" is now part of Windows10 and that it can be adressed in the PowerShell.
So I tried this:</p>
<p>tar... | 28,123 | 9,033,281 | 2024-04-17 23:05:32 | 64,468,867 | 13 | 2020-10-21 17:37:45 | 11,301,839 | 2020-10-22 11:02:58 | https://stackoverflow.com/q/64467425 | https://stackoverflow.com/a/64468867 | <p>EDIT: Here's an alternate method that is consistent even if all the files are moved/copied to another location. This one uses the hashes of all files to create a "master hash". It takes longer to run for obvious reasons but will be more reliable.</p>
<pre><code>$HashString = (Get-ChildItem C:\Temp -Recurse... | <p>EDIT: Here's an alternate method that is consistent even if all the files are moved/copied to another location. This one uses the hashes of all files to create a "master hash". It takes longer to run for obvious reasons but will be more reliable.</p> <pre><code>$HashString = (Get-ChildItem C:\Temp -Recurse... | 218, 526, 2179, 2358 | checksum, directory, md5, powershell | <h1>MD5-Checksum hashing with powershell for a whole directory</h1>
<p>I'm trying to generate an MD5-Checksum with powershell for a whole directory.
On Linux there is a 1-liner that works just great, like this one:</p>
<p>$ tar -cf - somedir | md5sum</p>
<p>I learned that "tar" is now part of Windows10 and th... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,535 | bash | # MD5-Checksum hashing with powershell for a whole directory
I'm trying to generate an MD5-Checksum with powershell for a whole directory.
On Linux there is a 1-liner that works just great, like this one:
$ tar -cf - somedir | md5sum
I learned that "tar" is now part of Windows10 and that it can be adressed in the Po... | EDIT: Here's an alternate method that is consistent even if all the files are moved/copied to another location. This one uses the hashes of all files to create a "master hash". It takes longer to run for obvious reasons but will be more reliable.
```
$HashString = (Get-ChildItem C:\Temp -Recurse | Get-FileHash -Algori... |
63288592 | How to use git bash in sublime text 3 | 6 | 2020-08-06 17:10:09 | <p>I use Sublime Text 3 as my default text/code editor and I very frequently use the terminal in Sublime Text 3 with the Terminus package. And recently I've discovered git it has a really wonderful bash and I prefer using the git bash instead of using git through the default Windows terminal.</p>
<p>Is there any way th... | 8,377 | 12,033,855 | 2022-10-06 08:00:17 | 63,293,174 | 13 | 2020-08-06 23:36:41 | 814,803 | 2020-08-06 23:36:41 | https://stackoverflow.com/q/63288592 | https://stackoverflow.com/a/63293174 | <p>To do this, open the Terminus preferences by choosing <code>Preferences > Package Settings > Terminus > Settings</code> from the menu or <code>Preferences: Terminus Settings</code> from the command palette.</p>
<p>Both will open the Terminus settings in a new split window, with your settings on the right an... | <p>To do this, open the Terminus preferences by choosing <code>Preferences > Package Settings > Terminus > Settings</code> from the menu or <code>Preferences: Terminus Settings</code> from the command palette.</p> <p>Both will open the Terminus settings in a new split window, with your settings on the right an... | 119, 387, 72788, 88190 | bash, git, sublimetext, sublimetext3 | <h1>How to use git bash in sublime text 3</h1>
<p>I use Sublime Text 3 as my default text/code editor and I very frequently use the terminal in Sublime Text 3 with the Terminus package. And recently I've discovered git it has a really wonderful bash and I prefer using the git bash instead of using git through the defau... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,536 | bash | # How to use git bash in sublime text 3
I use Sublime Text 3 as my default text/code editor and I very frequently use the terminal in Sublime Text 3 with the Terminus package. And recently I've discovered git it has a really wonderful bash and I prefer using the git bash instead of using git through the default Window... | To do this, open the Terminus preferences by choosing `Preferences > Package Settings > Terminus > Settings` from the menu or `Preferences: Terminus Settings` from the command palette.
Both will open the Terminus settings in a new split window, with your settings on the right and the defaults on the left. What you nee... |
60600539 | Powershell 5 : Cannot convert value To System.String | 6 | 2020-03-09 12:26:01 | <p>I have a PS script with which I read a csv file line by line into a variable :</p>
<p>CSV :</p>
<pre><code> header1;header2
column1;column2
</code></pre>
<p>PS Script :</p>
<pre><code>#-------------------------
# Func declarations
#-------------------------
function myFunc{
param(
[Parameter(Mandator... | 41,552 | 315,591 | 2024-02-13 17:49:49 | 60,601,823 | 13 | 2020-03-09 13:42:55 | 45,375 | 2023-11-01 18:27:15 | https://stackoverflow.com/q/60600539 | https://stackoverflow.com/a/60601823 |
<p>Note: As of this writing, there's no explanation for the specific symptoms described in the question, and Sandy reports their problem as now resolved.<br />
<strong>This answer generally explains under what circumstance you'll see the
<code>Cannot convert value to type System.String</code> error when passing an arg... | <p>Note: As of this writing, there's no explanation for the specific symptoms described in the question, and Sandy reports their problem as now resolved.<br /> <strong>This answer generally explains under what circumstance you'll see the <code>Cannot convert value to type System.String</code> error when passing an arg... | 526, 108010 | powershell, powershell-5.0 | <h1>Powershell 5 : Cannot convert value To System.String</h1>
<p>I have a PS script with which I read a csv file line by line into a variable :</p>
<p>CSV :</p>
<pre><code> header1;header2
column1;column2
</code></pre>
<p>PS Script :</p>
<pre><code>#-------------------------
# Func declarations
#--------------... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,537 | bash | # Powershell 5 : Cannot convert value To System.String
I have a PS script with which I read a csv file line by line into a variable :
CSV :
```
header1;header2
column1;column2
```
PS Script :
```
#-------------------------
# Func declarations
#-------------------------
function myFunc{
param(
[Par... | Note: As of this writing, there's no explanation for the specific symptoms described in the question, and Sandy reports their problem as now resolved.
**This answer generally explains under what circumstance you'll see the
`Cannot convert value to type System.String` error when passing an argument to a `[string]`-typ... |
55682533 | why 'read' command in shell script is missing initial characters? | 6 | 2019-04-15 04:14:37 | <p>I have the following shell script and it is missing some initial characters (it misses initial couple of characters, so far in my observation) from each line except the first line. </p>
<p>And this happens only when I use the <code>ffmpeg</code> command. Otherwise, it is fine. But this command does the actual task ... | 1,867 | 2,249,026 | 2019-04-15 04:57:59 | 55,682,555 | 13 | 2019-04-15 04:20:01 | 5,291,015 | 2019-04-15 04:57:59 | https://stackoverflow.com/q/55682533 | https://stackoverflow.com/a/55682555 | <p>This is pretty well explained in this post <a href="https://mywiki.wooledge.org/BashFAQ/089" rel="noreferrer">I'm reading a file line by line and running ssh or ffmpeg, only the first line gets processed!</a>. When reading a file line by line, if a command inside the loop also reads stdin, it can exhaust the input f... | <p>This is pretty well explained in this post <a href="https://mywiki.wooledge.org/BashFAQ/089" rel="noreferrer">I'm reading a file line by line and running ssh or ffmpeg, only the first line gets processed!</a>. When reading a file line by line, if a command inside the loop also reads stdin, it can exhaust the input f... | 58, 387, 390, 549, 3847 | bash, ffmpeg, linux, shell, ubuntu | <h1>why 'read' command in shell script is missing initial characters?</h1>
<p>I have the following shell script and it is missing some initial characters (it misses initial couple of characters, so far in my observation) from each line except the first line. </p>
<p>And this happens only when I use the <code>ffmpeg</c... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,538 | bash | # why 'read' command in shell script is missing initial characters?
I have the following shell script and it is missing some initial characters (it misses initial couple of characters, so far in my observation) from each line except the first line.
And this happens only when I use the `ffmpeg` command. Otherwise, it ... | This is pretty well explained in this post [I'm reading a file line by line and running ssh or ffmpeg, only the first line gets processed!](https://mywiki.wooledge.org/BashFAQ/089). When reading a file line by line, if a command inside the loop also reads stdin, it can exhaust the input file. In your case `ffmpeg` also... |
52858090 | Run bash command from windows Command line (WSL) | 6 | 2018-10-17 15:07:56 | <p>I have installed WSL on Windows 10 Pro.
And I need to execute bash commands from Windows Command Line like this:</p>
<pre><code>bash -c ll
</code></pre>
<p>Expected: <code>ll</code> command output in Command Line console</p>
<p>In practice: <code>/bin/bash: ll: command not found</code></p>
<p>But its work for s... | 12,947 | 4,481,855 | 2018-10-17 15:36:01 | 52,858,333 | 13 | 2018-10-17 15:19:30 | 469,210 | 2018-10-17 15:19:30 | https://stackoverflow.com/q/52858090 | https://stackoverflow.com/a/52858333 | <p><code>ll</code> is a common alias (for <code>ls -alF</code> in WSL; defined in the default <code>.bashrc</code>). Depending on how you invoke <code>bash</code> will determine whether the scripts which set up your system aliases are run. See the <code>INVOCATION</code> section of the <code>bash</code> manual.</p>
... | <p><code>ll</code> is a common alias (for <code>ls -alF</code> in WSL; defined in the default <code>.bashrc</code>). Depending on how you invoke <code>bash</code> will determine whether the scripts which set up your system aliases are run. See the <code>INVOCATION</code> section of the <code>bash</code> manual.</p> ... | 387, 119526 | bash, windows-subsystem-for-linux | <h1>Run bash command from windows Command line (WSL)</h1>
<p>I have installed WSL on Windows 10 Pro.
And I need to execute bash commands from Windows Command Line like this:</p>
<pre><code>bash -c ll
</code></pre>
<p>Expected: <code>ll</code> command output in Command Line console</p>
<p>In practice: <code>/bin/bas... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,539 | bash | # Run bash command from windows Command line (WSL)
I have installed WSL on Windows 10 Pro.
And I need to execute bash commands from Windows Command Line like this:
```
bash -c ll
```
Expected: `ll` command output in Command Line console
In practice: `/bin/bash: ll: command not found`
But its work for some commands... | `ll` is a common alias (for `ls -alF` in WSL; defined in the default `.bashrc`). Depending on how you invoke `bash` will determine whether the scripts which set up your system aliases are run. See the `INVOCATION` section of the `bash` manual.
You can use `bash -i -c ll` to invoke `bash` in an appropriate way for WSL. |
51175430 | Give the generated PDF a custom title | 6 | 2018-07-04 13:56:23 | <p>I've merged two PDF using the command<pre>$cmd = "gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=$outputName ";</pre>
This is working for me. But the issue is title of the new generated PDF is not set as per I've set in the <code>header('Content-Disposition: inline; filename="Test.pdf"');</code>
I'm expectin... | 3,016 | 6,468,641 | 2019-01-09 16:02:37 | 51,177,618 | 13 | 2018-07-04 16:09:10 | 701,996 | 2018-07-04 16:09:10 | https://stackoverflow.com/q/51175430 | https://stackoverflow.com/a/51177618 | <p>Sounds to me like you need to set the Title in the Document /Info dictionary of the PDF file. You can do that by sending a DOCINFO pdfmark.</p>
<p>You can pick up the pdfmark reference manual by googling for it. Its on the Adobe web site but they move the furniture so often there's no point in quoting today's URL.<... | <p>Sounds to me like you need to set the Title in the Document /Info dictionary of the PDF file. You can do that by sending a DOCINFO pdfmark.</p> <p>You can pick up the pdfmark reference manual by googling for it. Its on the Adobe web site but they move the furniture so often there's no point in quoting today's URL.<... | 5, 90, 390, 5062, 13265 | ghostscript, header, pdf, php, shell | <h1>Give the generated PDF a custom title</h1>
<p>I've merged two PDF using the command<pre>$cmd = "gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=$outputName ";</pre>
This is working for me. But the issue is title of the new generated PDF is not set as per I've set in the <code>header('Content-Disposition: inl... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,540 | bash | # Give the generated PDF a custom title
I've merged two PDF using the command
```
$cmd = "gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=$outputName ";
```
This is working for me. But the issue is title of the new generated PDF is not set as per I've set in the `header('Content-Disposition: inline; filename=... | Sounds to me like you need to set the Title in the Document /Info dictionary of the PDF file. You can do that by sending a DOCINFO pdfmark.
You can pick up the pdfmark reference manual by googling for it. Its on the Adobe web site but they move the furniture so often there's no point in quoting today's URL.
You can f... |
50082253 | Replace hyphen with space using bash | 6 | 2018-04-29 00:23:06 | <p>I'm reading a filename that has this data:</p>
<pre><code>2017-03-23
2018-01-23
2017-07-31
</code></pre>
<p>I want to read each line and replace the hyphens with spaces. Given the above example, I should get the following:</p>
<pre><code>2017 03 23
2018 01 23
2017 07 31
</code></pre>
<p>Here's my code:</p>
<pre... | 8,771 | 3,097,391 | 2022-12-19 17:54:15 | 50,082,306 | 13 | 2018-04-29 00:33:43 | 3,097,391 | 2018-04-29 03:43:57 | https://stackoverflow.com/q/50082253 | https://stackoverflow.com/a/50082306 | <p>tr will replace hyphens with spaces, for example:</p>
<pre><code>test=$(echo $date | tr "-" " ")
</code></pre>
| <p>tr will replace hyphens with spaces, for example:</p> <pre><code>test=$(echo $date | tr "-" " ") </code></pre> | 18, 387, 5282 | bash, regex, sed | <h1>Replace hyphen with space using bash</h1>
<p>I'm reading a filename that has this data:</p>
<pre><code>2017-03-23
2018-01-23
2017-07-31
</code></pre>
<p>I want to read each line and replace the hyphens with spaces. Given the above example, I should get the following:</p>
<pre><code>2017 03 23
2018 01 23
2017 07 ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,541 | bash | # Replace hyphen with space using bash
I'm reading a filename that has this data:
```
2017-03-23
2018-01-23
2017-07-31
```
I want to read each line and replace the hyphens with spaces. Given the above example, I should get the following:
```
2017 03 23
2018 01 23
2017 07 31
```
Here's my code:
```
#!/bin/sh
file... | tr will replace hyphens with spaces, for example:
```
test=$(echo $date | tr "-" " ")
``` |
48936032 | Bash concatenate array entries without spaces in between | 6 | 2018-02-22 19:50:19 | <p><strong>Problem</strong></p>
<p>I'm writing an bash script (version 4.3.48). There I have an array and want to concatenate all entries as a single string. The following code do such task (but lag in some case):</p>
<pre><code>declare -a array=(one two three)
echo "${array[@]}"
</code></pre>
<p>Unfortunately I get... | 5,893 | 9,031,159 | 2023-06-18 07:39:02 | 48,936,123 | 13 | 2018-02-22 19:55:22 | 1,566,221 | 2018-02-22 19:55:22 | https://stackoverflow.com/q/48936032 | https://stackoverflow.com/a/48936123 | <p><code>printf</code> gives you a lot more control over formatting, and it is also a bash builtin:</p>
<pre><code>printf %s "${array[@]}" $'\n'
</code></pre>
<p>(That works because the shell's <code>printf</code> keeps on repeating the pattern until the arguments are all used up.)</p>
| <p><code>printf</code> gives you a lot more control over formatting, and it is also a bash builtin:</p> <pre><code>printf %s "${array[@]}" $'\n' </code></pre> <p>(That works because the shell's <code>printf</code> keeps on repeating the pattern until the arguments are all used up.)</p> | 114, 387, 598, 6050 | arrays, bash, concatenation, performance | <h1>Bash concatenate array entries without spaces in between</h1>
<p><strong>Problem</strong></p>
<p>I'm writing an bash script (version 4.3.48). There I have an array and want to concatenate all entries as a single string. The following code do such task (but lag in some case):</p>
<pre><code>declare -a array=(one t... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,542 | bash | # Bash concatenate array entries without spaces in between
**Problem**
I'm writing an bash script (version 4.3.48). There I have an array and want to concatenate all entries as a single string. The following code do such task (but lag in some case):
```
declare -a array=(one two three)
echo "${array[@]}"
```
Unfort... | `printf` gives you a lot more control over formatting, and it is also a bash builtin:
```
printf %s "${array[@]}" $'\n'
```
(That works because the shell's `printf` keeps on repeating the pattern until the arguments are all used up.) |
46586447 | Using bash, how can I remove the extensions of all files in a specific directory? | 6 | 2017-10-05 13:08:10 | <p>I want to keep the files but remove their extensions. The files do not have the same extension to them. My end goal is to remove all their extensions and change them to one single extension of my choice. I have the second part down.</p>
<p>My code so far:</p>
<pre><code>#!/bin/bash
echo -n "Enter the directory: "
... | 4,891 | 7,337,777 | 2022-01-31 05:21:28 | 46,586,508 | 13 | 2017-10-05 13:11:41 | 5,291,015 | 2022-01-31 05:21:28 | https://stackoverflow.com/q/46586447 | https://stackoverflow.com/a/46586508 | <p>You don't need an external command <code>find</code> for this, but do it in <code>bash</code> alone. The script below removes the extension from all the files in the folder <code>path</code>.</p>
<pre class="lang-sh prettyprint-override"><code>for file in "$path"/*; do
[ -f "$file" ] || conti... | <p>You don't need an external command <code>find</code> for this, but do it in <code>bash</code> alone. The script below removes the extension from all the files in the folder <code>path</code>.</p> <pre class="lang-sh prettyprint-override"><code>for file in "$path"/*; do [ -f "$file" ] || conti... | 58, 387, 390, 10327 | bash, linux, sh, shell | <h1>Using bash, how can I remove the extensions of all files in a specific directory?</h1>
<p>I want to keep the files but remove their extensions. The files do not have the same extension to them. My end goal is to remove all their extensions and change them to one single extension of my choice. I have the second part... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,543 | bash | # Using bash, how can I remove the extensions of all files in a specific directory?
I want to keep the files but remove their extensions. The files do not have the same extension to them. My end goal is to remove all their extensions and change them to one single extension of my choice. I have the second part down.
M... | You don't need an external command `find` for this, but do it in `bash` alone. The script below removes the extension from all the files in the folder `path`.
```
for file in "$path"/*; do
[ -f "$file" ] || continue
mv "$file" "${file%.*}"
done
```
The reason for using `[ -f "$file" ]` is only for a safety ch... |
43531688 | Unnecessary space in output when using Write-Host | 6 | 2017-04-20 23:49:05 | <p>When I use <code>Write-Host</code> within a <code>Foreach-Object</code>, I get an unnecessary space in the output.</p>
<pre><code>write-host "http://contoso.com/personal/"$_.ADUserName
</code></pre>
<p>Output:</p>
<pre><code>http://contoso.com/personal/ john.doe
</code></pre>
<p>How can I remove the space before... | 6,014 | 7,898,591 | 2017-04-22 20:42:15 | 43,531,874 | 13 | 2017-04-21 00:09:37 | 24,995 | 2017-04-21 00:42:37 | https://stackoverflow.com/q/43531688 | https://stackoverflow.com/a/43531874 | <p>This is happening because Write-Host is considering your constant string and your object to be two separate parameters -- you aren't actually joining the strings together the way you're calling it. Instead of calling it this way, actually concatenate the strings:</p>
<pre><code>write-host "http://contoso.com/perso... | <p>This is happening because Write-Host is considering your constant string and your object to be two separate parameters -- you aren't actually joining the strings together the way you're calling it. Instead of calling it this way, actually concatenate the strings:</p> <pre><code>write-host "http://contoso.com/perso... | 526 | powershell | <h1>Unnecessary space in output when using Write-Host</h1>
<p>When I use <code>Write-Host</code> within a <code>Foreach-Object</code>, I get an unnecessary space in the output.</p>
<pre><code>write-host "http://contoso.com/personal/"$_.ADUserName
</code></pre>
<p>Output:</p>
<pre><code>http://contoso.com/personal/ j... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,544 | bash | # Unnecessary space in output when using Write-Host
When I use `Write-Host` within a `Foreach-Object`, I get an unnecessary space in the output.
```
write-host "http://contoso.com/personal/"$_.ADUserName
```
Output:
```
http://contoso.com/personal/ john.doe
```
How can I remove the space before john? Trim does not... | This is happening because Write-Host is considering your constant string and your object to be two separate parameters -- you aren't actually joining the strings together the way you're calling it. Instead of calling it this way, actually concatenate the strings:
```
write-host "http://contoso.com/personal/$($_.ADUser... |
42622556 | How to run a shell script from cocoa application using Swift? | 6 | 2017-03-06 09:58:55 | <p>How can I run a shell script from cocoa application using Swift?</p>
<p>I have a shell script file.sh that I want to run from within my cocoa application. How can I do this using Swift?</p>
<p>Any help appreciated! :)</p>
| 7,042 | 2,972,303 | 2022-04-05 06:23:23 | 42,623,019 | 13 | 2017-03-06 10:20:51 | 4,063,602 | 2020-01-25 15:40:19 | https://stackoverflow.com/q/42622556 | https://stackoverflow.com/a/42623019 | <h1>Pre Swift 3</h1>
<p>You can use <code>NSTask</code> (<a href="https://developer.apple.com/reference/foundation/nstask" rel="noreferrer">API reference here</a>) for this.</p>
<p>A <code>NSTask</code> takes (among other things) a <code>launchPath</code> which points to your script. It can also take an array of <cod... | <h1>Pre Swift 3</h1> <p>You can use <code>NSTask</code> (<a href="https://developer.apple.com/reference/foundation/nstask" rel="noreferrer">API reference here</a>) for this.</p> <p>A <code>NSTask</code> takes (among other things) a <code>launchPath</code> which points to your script. It can also take an array of <cod... | 390, 391, 994, 104797 | cocoa, shell, swift, terminal | <h1>How to run a shell script from cocoa application using Swift?</h1>
<p>How can I run a shell script from cocoa application using Swift?</p>
<p>I have a shell script file.sh that I want to run from within my cocoa application. How can I do this using Swift?</p>
<p>Any help appreciated! :)</p>
| q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,545 | bash | # How to run a shell script from cocoa application using Swift?
How can I run a shell script from cocoa application using Swift?
I have a shell script file.sh that I want to run from within my cocoa application. How can I do this using Swift?
Any help appreciated! :) | # Pre Swift 3
You can use `NSTask` ([API reference here](https://developer.apple.com/reference/foundation/nstask)) for this.
A `NSTask` takes (among other things) a `launchPath` which points to your script. It can also take an array of `arguments` and when you are ready to launch your task, you call `launch()` on it.... |
41023817 | Check if a process is running and if not, restart it using Cron | 6 | 2016-12-07 17:33:29 | <p>I have created restart.sh with followin code </p>
<pre><code>#!/bin/bash
ps -aux | grep sidekiq > /dev/null
if [ $? -eq 0 ]; then
echo "Process is running."
else
echo "Process is not running."
fi
</code></pre>
<p>To check if sidekiq process is running or not. I will put this script in cron to run daily so i... | 21,815 | 692,622 | 2017-11-30 18:36:45 | 41,023,934 | 13 | 2016-12-07 17:39:27 | 5,291,015 | 2016-12-07 17:47:03 | https://stackoverflow.com/q/41023817 | https://stackoverflow.com/a/41023934 | <p>To exclude the <code>grep</code> result from the <code>ps</code> output. Do</p>
<pre><code>ps -aux | grep -v grep | grep sidekiq
</code></pre>
<p>(or) do a <code>regEx</code> search of the process name, i.e. <code>s</code> followed by rest of the process name.</p>
<pre><code>ps -aux | grep [s]idekiq
</code></pre>... | <p>To exclude the <code>grep</code> result from the <code>ps</code> output. Do</p> <pre><code>ps -aux | grep -v grep | grep sidekiq </code></pre> <p>(or) do a <code>regEx</code> search of the process name, i.e. <code>s</code> followed by rest of the process name.</p> <pre><code>ps -aux | grep [s]idekiq </code></pre>... | 34, 387, 390, 601, 990 | awk, bash, cron, shell, unix | <h1>Check if a process is running and if not, restart it using Cron</h1>
<p>I have created restart.sh with followin code </p>
<pre><code>#!/bin/bash
ps -aux | grep sidekiq > /dev/null
if [ $? -eq 0 ]; then
echo "Process is running."
else
echo "Process is not running."
fi
</code></pre>
<p>To check if sidekiq pr... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,546 | bash | # Check if a process is running and if not, restart it using Cron
I have created restart.sh with followin code
```
#!/bin/bash
ps -aux | grep sidekiq > /dev/null
if [ $? -eq 0 ]; then
echo "Process is running."
else
echo "Process is not running."
fi
```
To check if sidekiq process is running or not. I will put t... | To exclude the `grep` result from the `ps` output. Do
```
ps -aux | grep -v grep | grep sidekiq
```
(or) do a `regEx` search of the process name, i.e. `s` followed by rest of the process name.
```
ps -aux | grep [s]idekiq
```
To avoid such conflicts in the search use process `grep` [`pgrep`](https://linux.die.net/m... |
39813212 | Looping through the result set | 6 | 2016-10-02 02:08:00 | <p>When I run this command:</p>
<pre><code>$k = Get-Process | select Name -First 3
</code></pre>
<p>I'm getting this output:</p>
<pre>Name
----
AESTSr64
ApplicationFrameHost
BtwRSupportService</pre>
<p>I want to place each result in a separate variable of type string and get its length. I want to know how can I acc... | 14,461 | 1,010,405 | 2016-10-02 13:32:32 | 39,814,895 | 13 | 2016-10-02 07:39:38 | 3,735,690 | 2016-10-02 07:39:38 | https://stackoverflow.com/q/39813212 | https://stackoverflow.com/a/39814895 | <p>you can do it simply :)</p>
<pre><code> get-process | select Name, @{Name="NameLength";expression={$_.Name.length}} -first 3
</code></pre>
<p>if you want loop on result:</p>
<pre><code> $list=get-process | select Name, @{Name="NameLength";expression={$_.Name.length}} -first 3
foreach ($item in $list)
{
... | <p>you can do it simply :)</p> <pre><code> get-process | select Name, @{Name="NameLength";expression={$_.Name.length}} -first 3 </code></pre> <p>if you want loop on result:</p> <pre><code> $list=get-process | select Name, @{Name="NameLength";expression={$_.Name.length}} -first 3 foreach ($item in $list) { ... | 526 | powershell | <h1>Looping through the result set</h1>
<p>When I run this command:</p>
<pre><code>$k = Get-Process | select Name -First 3
</code></pre>
<p>I'm getting this output:</p>
<pre>Name
----
AESTSr64
ApplicationFrameHost
BtwRSupportService</pre>
<p>I want to place each result in a separate variable of type string and get ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,547 | bash | # Looping through the result set
When I run this command:
```
$k = Get-Process | select Name -First 3
```
I'm getting this output:
```
Name
----
AESTSr64
ApplicationFrameHost
BtwRSupportService
```
I want to place each result in a separate variable of type string and get its length. I want to know how can I access... | you can do it simply :)
```
get-process | select Name, @{Name="NameLength";expression={$_.Name.length}} -first 3
```
if you want loop on result:
```
$list=get-process | select Name, @{Name="NameLength";expression={$_.Name.length}} -first 3
foreach ($item in $list)
{
write-host ("{0} {1}" -f $item.Name, $... |
37529382 | Getting bad flag in substitute command '/' for sed replacement | 6 | 2016-05-30 15:36:12 | <p>I am facing one issue while using replace in my sed command. I've a file named <code>a.txt</code>, I want to replace a single line with some other line but I am getting above mentioned error.</p>
<p><strong>Code I want to replace:</strong></p>
<pre><code>DOMAIN_LOCAL = "http://127.0.0.1:3000";
</code></pre>
<p>I ... | 13,890 | 5,436,986 | 2021-01-13 14:51:10 | 37,529,462 | 13 | 2016-05-30 15:40:58 | 887,539 | 2017-03-20 19:37:36 | https://stackoverflow.com/q/37529382 | https://stackoverflow.com/a/37529462 | <p>You will need to use another delimiter. And escape the <code>$</code> or use single quotes: </p>
<pre><code>% ip="http://127.1.1.2:3000"
% sed 's~DOMAIN_LOCAL = .*$~DOMAIN_LOCAL = "'"$ip"'";~' a.txt
DOMAIN_LOCAL = http://127.1.1.2:3000;
</code></pre>
<p>When you use <code>/</code> as a delimiter in the <code>s</co... | <p>You will need to use another delimiter. And escape the <code>$</code> or use single quotes: </p> <pre><code>% ip="http://127.1.1.2:3000" % sed 's~DOMAIN_LOCAL = .*$~DOMAIN_LOCAL = "'"$ip"'";~' a.txt DOMAIN_LOCAL = http://127.1.1.2:3000; </code></pre> <p>When you use <code>/</code> as a delimiter in the <code>s</co... | 387, 5282 | bash, sed | <h1>Getting bad flag in substitute command '/' for sed replacement</h1>
<p>I am facing one issue while using replace in my sed command. I've a file named <code>a.txt</code>, I want to replace a single line with some other line but I am getting above mentioned error.</p>
<p><strong>Code I want to replace:</strong></p>
... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,548 | bash | # Getting bad flag in substitute command '/' for sed replacement
I am facing one issue while using replace in my sed command. I've a file named `a.txt`, I want to replace a single line with some other line but I am getting above mentioned error.
**Code I want to replace:**
```
DOMAIN_LOCAL = "http://127.0.0.1:3000";... | You will need to use another delimiter. And escape the `$` or use single quotes:
```
% ip="http://127.1.1.2:3000"
% sed 's~DOMAIN_LOCAL = .*$~DOMAIN_LOCAL = "'"$ip"'";~' a.txt
DOMAIN_LOCAL = http://127.1.1.2:3000;
```
When you use `/` as a delimiter in the `s`ubstitute command it will be terminated at the first slash... |
35732150 | Django Shell image upload _io.BufferedReader no attribute size | 6 | 2016-03-01 19:51:02 | <p>My problem is that when I try to save image to my model using Django shell I get this error that I can't find solution anywere.</p>
<p>models.py</p>
<pre><code>class AdImage(models.Model):
ad = models.ForeignKey(Ad)
full_photo = models.ImageField(upload_to='uploads/', blank=True)
</code></pre>
<p>I import m... | 7,608 | 3,412,846 | 2021-11-04 16:41:26 | 36,456,327 | 13 | 2016-04-06 15:59:32 | 85,461 | 2021-11-04 16:41:26 | https://stackoverflow.com/q/35732150 | https://stackoverflow.com/a/36456327 | <p>The <code>FieldFile.save</code> method needs to be called with an instance of <code>django.core.files.File</code>, rather than a built-in python file handle. Change the save invocation to:</p>
<pre class="lang-py prettyprint-override"><code>from django.core.files import File
imagead.full_photo.save("NowHiring... | <p>The <code>FieldFile.save</code> method needs to be called with an instance of <code>django.core.files.File</code>, rather than a built-in python file handle. Change the save invocation to:</p> <pre class="lang-py prettyprint-override"><code>from django.core.files import File imagead.full_photo.save("NowHiring... | 16, 243, 390 | django, python, shell | <h1>Django Shell image upload _io.BufferedReader no attribute size</h1>
<p>My problem is that when I try to save image to my model using Django shell I get this error that I can't find solution anywere.</p>
<p>models.py</p>
<pre><code>class AdImage(models.Model):
ad = models.ForeignKey(Ad)
full_photo = models.I... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,549 | bash | # Django Shell image upload _io.BufferedReader no attribute size
My problem is that when I try to save image to my model using Django shell I get this error that I can't find solution anywere.
models.py
```
class AdImage(models.Model):
ad = models.ForeignKey(Ad)
full_photo = models.ImageField(upload_to='upload... | The `FieldFile.save` method needs to be called with an instance of `django.core.files.File`, rather than a built-in python file handle. Change the save invocation to:
```
from django.core.files import File
imagead.full_photo.save("NowHiring.jpg", File(open("C:\\NowHiring.jpg", "rb")))
```
Django docs reference for [... |
34168397 | How can I find files with more than one line in them with a given name? | 6 | 2015-12-08 23:58:09 | <p><strong>Question:</strong> How can I get all the files with name "interesting-file.txt" that have more than one line in them?</p>
<p><strong>Background research:</strong></p>
<ul>
<li>I can find the files easly with <code>find . -name "interesting-file.txt"</code></li>
<li>I believe I need to use some form of <cod... | 4,150 | 863,846 | 2019-02-13 18:00:55 | 34,168,510 | 13 | 2015-12-09 00:08:42 | 2,088,135 | 2019-02-13 18:00:55 | https://stackoverflow.com/q/34168397 | https://stackoverflow.com/a/34168510 | <p>I would go for something like this:</p>
<pre><code>find . -name "interesting-file.txt" -exec awk 'END { if (NR > 1) print FILENAME }' {} \;
</code></pre>
<p>All the files that are found are passed to awk, which prints the name if the number of lines <code>NR</code> is greater than 1.</p>
<p>With GNU awk you ca... | <p>I would go for something like this:</p> <pre><code>find . -name "interesting-file.txt" -exec awk 'END { if (NR > 1) print FILENAME }' {} \; </code></pre> <p>All the files that are found are passed to awk, which prints the name if the number of lines <code>NR</code> is greater than 1.</p> <p>With GNU awk you ca... | 58, 387, 1231 | bash, command-line, linux | <h1>How can I find files with more than one line in them with a given name?</h1>
<p><strong>Question:</strong> How can I get all the files with name "interesting-file.txt" that have more than one line in them?</p>
<p><strong>Background research:</strong></p>
<ul>
<li>I can find the files easly with <code>find . -name... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,550 | bash | # How can I find files with more than one line in them with a given name?
**Question:** How can I get all the files with name "interesting-file.txt" that have more than one line in them?
**Background research:**
- I can find the files easly with `find . -name "interesting-file.txt"`
- I believe I need to use some fo... | I would go for something like this:
```
find . -name "interesting-file.txt" -exec awk 'END { if (NR > 1) print FILENAME }' {} \;
```
All the files that are found are passed to awk, which prints the name if the number of lines `NR` is greater than 1.
With GNU awk you can take advantage of the `ENDFILE` block and use ... |
34165464 | Adding text after variable expansion - Fish | 6 | 2015-12-08 20:32:14 | <p>I want to add text after variable expansion, but fish thinks I'm referring to a different variable name e.g.</p>
<pre><code>$ set dessert "cake"
$ echo $dessert
cake
$ echo "I want 7 $desserts"
I want 7
$ cat ./menu.txt | sed "s/$desserts/cookie/g"
sed: first RE may not be empty
</code></pre>
| 3,185 | 3,657,151 | 2015-12-08 22:17:40 | 34,165,593 | 13 | 2015-12-08 20:39:09 | 5,590,742 | 2015-12-08 22:17:40 | https://stackoverflow.com/q/34165464 | https://stackoverflow.com/a/34165593 | <p>Looks like you want to put curly brackets around your vaiable, like "{$dessert}s."
Example:</p>
<pre><code>> set xyz blarch
> echo $xyz
blarch
> echo ${xyz}
Variables cannot be bracketed. In fish, please use {$xyz}.
fish: echo ${xyz}
^
> echo {$xyz}
blarch
> echo i like {$xyz}s
i like bla... | <p>Looks like you want to put curly brackets around your vaiable, like "{$dessert}s." Example:</p> <pre><code>> set xyz blarch > echo $xyz blarch > echo ${xyz} Variables cannot be bracketed. In fish, please use {$xyz}. fish: echo ${xyz} ^ > echo {$xyz} blarch > echo i like {$xyz}s i like bla... | 390, 55824 | fish, shell | <h1>Adding text after variable expansion - Fish</h1>
<p>I want to add text after variable expansion, but fish thinks I'm referring to a different variable name e.g.</p>
<pre><code>$ set dessert "cake"
$ echo $dessert
cake
$ echo "I want 7 $desserts"
I want 7
$ cat ./menu.txt | sed "s/$desserts/cookie/g"
sed: first RE... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,551 | bash | # Adding text after variable expansion - Fish
I want to add text after variable expansion, but fish thinks I'm referring to a different variable name e.g.
```
$ set dessert "cake"
$ echo $dessert
cake
$ echo "I want 7 $desserts"
I want 7
$ cat ./menu.txt | sed "s/$desserts/cookie/g"
sed: first RE may not be empty
``... | Looks like you want to put curly brackets around your vaiable, like "{$dessert}s."
Example:
```
> set xyz blarch
> echo $xyz
blarch
> echo ${xyz}
Variables cannot be bracketed. In fish, please use {$xyz}.
fish: echo ${xyz}
^
> echo {$xyz}
blarch
> echo i like {$xyz}s
i like blarchs
>
```
edit 2: Hmm... bo... |
33236703 | Group-Object in powershell, select first item in each group | 6 | 2015-10-20 12:28:47 | <p>Given the following script.</p>
<pre><code>$module = # get path
$code = get-childitem $module -recurse -include *.dll
$list = $code | group-object -Property Name
$list
</code></pre>
<p>I retreive the following:</p>
<pre><code>Count Name Group ... | 8,962 | 231,821 | 2015-10-20 12:40:11 | 33,236,942 | 13 | 2015-10-20 12:40:11 | 1,358 | 2015-10-20 12:40:11 | https://stackoverflow.com/q/33236703 | https://stackoverflow.com/a/33236942 | <p>If I understand correctly, this should do it:</p>
<pre><code>$list | %{$_.Group[0].FullName}
</code></pre>
| <p>If I understand correctly, this should do it:</p> <pre><code>$list | %{$_.Group[0].FullName} </code></pre> | 526 | powershell | <h1>Group-Object in powershell, select first item in each group</h1>
<p>Given the following script.</p>
<pre><code>$module = # get path
$code = get-childitem $module -recurse -include *.dll
$list = $code | group-object -Property Name
$list
</code></pre>
<p>I retreive the following:</p>
<pre><code>Count Name ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,552 | bash | # Group-Object in powershell, select first item in each group
Given the following script.
```
$module = # get path
$code = get-childitem $module -recurse -include *.dll
$list = $code | group-object -Property Name
$list
```
I retreive the following:
```
Count Name Group ... | If I understand correctly, this should do it:
```
$list | %{$_.Group[0].FullName}
``` |
33063673 | Bash script to backup data to google drive | 6 | 2015-10-11 09:53:17 | <p>I want to create a bash script that will log into my google drive account and backup my main folder. I've done a bit of research and I know we need some sort of OAuth for using the Google Drive API but I'm still fairly new so I thought I can get some solid guidance from the stack community.</p>
| 25,040 | 2,582,622 | 2019-11-12 02:44:15 | 33,063,790 | 13 | 2015-10-11 10:07:28 | 797,495 | 2019-11-12 02:44:15 | https://stackoverflow.com/q/33063673 | https://stackoverflow.com/a/33063790 | <p>I guess you don't need to re-invent the wheel, use <a href="https://github.com/prasmussen/gdrive#downloads" rel="nofollow noreferrer">gdrive</a> and you're good to go</p>
<p><strong>SETUP:</strong></p>
<pre><code>wget -O drive "https://drive.google.com/uc?id=0B3X9GlR6EmbnMHBMVWtKaEZXdDg"
mv drive /usr/sbin/drive... | <p>I guess you don't need to re-invent the wheel, use <a href="https://github.com/prasmussen/gdrive#downloads" rel="nofollow noreferrer">gdrive</a> and you're good to go</p> <p><strong>SETUP:</strong></p> <pre><code>wget -O drive "https://drive.google.com/uc?id=0B3X9GlR6EmbnMHBMVWtKaEZXdDg" mv drive /usr/sbin/drive... | 387, 390, 90589 | bash, google-drive-realtime-api, shell | <h1>Bash script to backup data to google drive</h1>
<p>I want to create a bash script that will log into my google drive account and backup my main folder. I've done a bit of research and I know we need some sort of OAuth for using the Google Drive API but I'm still fairly new so I thought I can get some solid guidance... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,553 | bash | # Bash script to backup data to google drive
I want to create a bash script that will log into my google drive account and backup my main folder. I've done a bit of research and I know we need some sort of OAuth for using the Google Drive API but I'm still fairly new so I thought I can get some solid guidance from the... | I guess you don't need to re-invent the wheel, use [gdrive](https://github.com/prasmussen/gdrive#downloads) and you're good to go
**SETUP:**
```
wget -O drive "https://drive.google.com/uc?id=0B3X9GlR6EmbnMHBMVWtKaEZXdDg"
mv drive /usr/sbin/drive
chmod 755 /usr/sbin/drive
```
Now, simply run `drive` to start the ... |
30820894 | Remove duplicates from text file based on second text file | 6 | 2015-06-13 16:23:36 | <p>How can I remove all lines from a text file (<code>main.txt</code>) by checking a second textfile (<code>removethese.txt</code>). What is an <strong>efficient approach</strong> if files are greater than 10-100mb. [Using mac]</p>
<h3>Example:</h3>
<pre><code>main.txt
3
1
2
5
</code></pre>
<p>Remove these lines</p>
<p... | 4,990 | 4,399,243 | 2015-06-21 13:32:00 | 30,863,875 | 13 | 2015-06-16 09:36:44 | 1,983,854 | 2015-06-16 09:36:44 | https://stackoverflow.com/q/30820894 | https://stackoverflow.com/a/30863875 | <p>There are two standard ways to do this:</p>
<p>With <code>grep</code>:</p>
<pre><code>grep -vxFf removethese main
</code></pre>
<p>This uses:</p>
<ul>
<li><code>-v</code> to invert the match.</li>
<li><code>-x</code> match whole line, to prevent, for example, <code>he</code> to match lines like <code>hello</code... | <p>There are two standard ways to do this:</p> <p>With <code>grep</code>:</p> <pre><code>grep -vxFf removethese main </code></pre> <p>This uses:</p> <ul> <li><code>-v</code> to invert the match.</li> <li><code>-x</code> match whole line, to prevent, for example, <code>he</code> to match lines like <code>hello</code... | 18, 34, 387, 1469, 5025 | bash, editor, regex, text, unix | <h1>Remove duplicates from text file based on second text file</h1>
<p>How can I remove all lines from a text file (<code>main.txt</code>) by checking a second textfile (<code>removethese.txt</code>). What is an <strong>efficient approach</strong> if files are greater than 10-100mb. [Using mac]</p>
<h3>Example:</h3>
<p... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,554 | bash | # Remove duplicates from text file based on second text file
How can I remove all lines from a text file (`main.txt`) by checking a second textfile (`removethese.txt`). What is an **efficient approach** if files are greater than 10-100mb. [Using mac]
### Example:
```
main.txt
3
1
2
5
```
Remove these lines
```
rem... | There are two standard ways to do this:
With `grep`:
```
grep -vxFf removethese main
```
This uses:
- `-v` to invert the match.
- `-x` match whole line, to prevent, for example, `he` to match lines like `hello` or `highway to hell`.
- `-F` to use fixed strings, so that the parameter is taken as it is, not interpret... |
30488308 | get-website/get-webapplication associated directory | 6 | 2015-05-27 16:34:26 | <p>If I wanted to find the directory associated with an IIS site or application, how would I do that? </p>
<p>I cannot seem to find anything on any properties of objects from <code>Get-Website</code> and <code>Get-WebApplication</code> that allow me to do so.</p>
| 8,493 | 1,054,637 | 2015-05-27 18:04:23 | 30,488,916 | 13 | 2015-05-27 17:05:09 | 66,169 | 2015-05-27 17:05:09 | https://stackoverflow.com/q/30488308 | https://stackoverflow.com/a/30488916 | <p>Just look at the members of a web site:</p>
<pre><code>get-website -Name "Default Web Site" | Get-Member
</code></pre>
<p>returns:</p>
<pre><code>...
password NoteProperty System.String password=
physicalPath NoteProperty System.String physicalPath=%SystemDrive%\i... | <p>Just look at the members of a web site:</p> <pre><code>get-website -Name "Default Web Site" | Get-Member </code></pre> <p>returns:</p> <pre><code>... password NoteProperty System.String password= physicalPath NoteProperty System.String physicalPath=%SystemDrive%\i... | 215, 526 | iis, powershell | <h1>get-website/get-webapplication associated directory</h1>
<p>If I wanted to find the directory associated with an IIS site or application, how would I do that? </p>
<p>I cannot seem to find anything on any properties of objects from <code>Get-Website</code> and <code>Get-WebApplication</code> that allow me to do so... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,555 | bash | # get-website/get-webapplication associated directory
If I wanted to find the directory associated with an IIS site or application, how would I do that?
I cannot seem to find anything on any properties of objects from `Get-Website` and `Get-WebApplication` that allow me to do so. | Just look at the members of a web site:
```
get-website -Name "Default Web Site" | Get-Member
```
returns:
```
...
password NoteProperty System.String password=
physicalPath NoteProperty System.String physicalPath=%SystemDrive%\inetpub\wwwroot
serverAutoStart ... |
28580041 | Run cmd.exe from PowerShell | 6 | 2015-02-18 09:29:50 | <p>I am trying to run some unit tests using PowerShell. I have a command that (sort of) works:</p>
<pre><code>$output = & $vsTestPath $TestAssembly $logger $TestCaseFilter 2>&1
</code></pre>
<p>The problem with this is that the standard out and standard error streams don't come out in the right order - the... | 50,679 | 1,158,174 | 2018-09-11 19:50:33 | 28,587,233 | 13 | 2015-02-18 15:26:37 | 4,003,407 | 2018-09-11 19:50:33 | https://stackoverflow.com/q/28580041 | https://stackoverflow.com/a/28587233 | <p>When you run this PowerShell command,</p>
<pre><code>& cmd.exe /c $vsTestPath $TestAssembly 2`>`&1
</code></pre>
<p>PowerShell produces this command line:</p>
<pre><code>cmd.exe /c "C:\Program Files (x86)\BlaBlaBla.exe" "C:\IntegrationTesting\Test Application\BlaBlaBla.dll" 2>&1
</code></pre>
<... | <p>When you run this PowerShell command,</p> <pre><code>& cmd.exe /c $vsTestPath $TestAssembly 2`>`&1 </code></pre> <p>PowerShell produces this command line:</p> <pre><code>cmd.exe /c "C:\Program Files (x86)\BlaBlaBla.exe" "C:\IntegrationTesting\Test Application\BlaBlaBla.dll" 2>&1 </code></pre> <... | 526, 2631 | cmd, powershell | <h1>Run cmd.exe from PowerShell</h1>
<p>I am trying to run some unit tests using PowerShell. I have a command that (sort of) works:</p>
<pre><code>$output = & $vsTestPath $TestAssembly $logger $TestCaseFilter 2>&1
</code></pre>
<p>The problem with this is that the standard out and standard error streams do... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,556 | bash | # Run cmd.exe from PowerShell
I am trying to run some unit tests using PowerShell. I have a command that (sort of) works:
```
$output = & $vsTestPath $TestAssembly $logger $TestCaseFilter 2>&1
```
The problem with this is that the standard out and standard error streams don't come out in the right order - they get m... | When you run this PowerShell command,
```
& cmd.exe /c $vsTestPath $TestAssembly 2`>`&1
```
PowerShell produces this command line:
```
cmd.exe /c "C:\Program Files (x86)\BlaBlaBla.exe" "C:\IntegrationTesting\Test Application\BlaBlaBla.dll" 2>&1
```
PowerShell encloses values of `$vsTestPath` and `$TestAssembly` in ... |
28072190 | Sed error "\1 not defined in the RE" on MacOSX 10.9.5 | 6 | 2015-01-21 16:31:00 | <p>I am trying to build a generic formatter for my MP3 file names (very important) with bash, and a large part of this is being able to move text around using regex variables. For example I am trying to remove the parentheses () from around the ft. Kevin Parker.</p>
<pre><code>oldfilename="Mark Ronson - 02 Summer Brea... | 9,218 | 158,815 | 2015-01-21 16:51:34 | 28,072,266 | 13 | 2015-01-21 16:35:54 | 15,168 | 2015-01-21 16:51:34 | https://stackoverflow.com/q/28072190 | https://stackoverflow.com/a/28072266 | <p>If you use <code>-E</code>, then <code>\(</code> and <code>\)</code> are actual parentheses; to capture, you'd use just <code>(</code> and <code>)</code>. Here, you want to remove parentheses, so you need to match a literal <code>(</code>, capture the content up to the next <code>)</code> and match but not capture ... | <p>If you use <code>-E</code>, then <code>\(</code> and <code>\)</code> are actual parentheses; to capture, you'd use just <code>(</code> and <code>)</code>. Here, you want to remove parentheses, so you need to match a literal <code>(</code>, capture the content up to the next <code>)</code> and match but not capture ... | 18, 369, 387, 5282 | bash, macos, regex, sed | <h1>Sed error "\1 not defined in the RE" on MacOSX 10.9.5</h1>
<p>I am trying to build a generic formatter for my MP3 file names (very important) with bash, and a large part of this is being able to move text around using regex variables. For example I am trying to remove the parentheses () from around the ft. Kevin Pa... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,557 | bash | # Sed error "\1 not defined in the RE" on MacOSX 10.9.5
I am trying to build a generic formatter for my MP3 file names (very important) with bash, and a large part of this is being able to move text around using regex variables. For example I am trying to remove the parentheses () from around the ft. Kevin Parker.
``... | If you use `-E`, then `\(` and `\)` are actual parentheses; to capture, you'd use just `(` and `)`. Here, you want to remove parentheses, so you need to match a literal `(`, capture the content up to the next `)` and match but not capture the close `)`, and replace the whole lot with just the capture:
```
newfilename=... |
26403064 | Continue while from nested for-loop | 6 | 2014-10-16 11:17:34 | <p>I have the following loop structure:</p>
<pre><code>while ($reader.Read() -eq $true)
{
$row = @{}
for ($i = 0; $i -lt $reader.FieldCount; $i++)
{
if(something...)
{
#continue with while
}
}
#do more stuff...
}
</code></pre>
<p>Now, is there any way ... | 10,054 | 1,537,195 | 2016-12-10 19:46:26 | 26,407,255 | 13 | 2014-10-16 14:43:20 | 4,137,916 | 2014-10-16 15:31:44 | https://stackoverflow.com/q/26403064 | https://stackoverflow.com/a/26407255 | <p>Factoring out the inner loop to a function could improve readability, depending on how tangled up your variables are.</p>
<pre class="lang-cs prettyprint-override"><code>function processRow($reader) {
$row = @{}
for ($i = 0; $i -lt $reader.FieldCount; $i++)
{
if(-not something...) { return $null... | <p>Factoring out the inner loop to a function could improve readability, depending on how tangled up your variables are.</p> <pre class="lang-cs prettyprint-override"><code>function processRow($reader) { $row = @{} for ($i = 0; $i -lt $reader.FieldCount; $i++) { if(-not something...) { return $null... | 526, 2314 | loops, powershell | <h1>Continue while from nested for-loop</h1>
<p>I have the following loop structure:</p>
<pre><code>while ($reader.Read() -eq $true)
{
$row = @{}
for ($i = 0; $i -lt $reader.FieldCount; $i++)
{
if(something...)
{
#continue with while
}
}
#do more stuff... ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,558 | bash | # Continue while from nested for-loop
I have the following loop structure:
```
while ($reader.Read() -eq $true)
{
$row = @{}
for ($i = 0; $i -lt $reader.FieldCount; $i++)
{
if(something...)
{
#continue with while
}
}
#do more stuff...
}
```
Now, is th... | Factoring out the inner loop to a function could improve readability, depending on how tangled up your variables are.
```
function processRow($reader) {
$row = @{}
for ($i = 0; $i -lt $reader.FieldCount; $i++)
{
if(-not something...) { return $null }
# process row
}
$row
}
while ($... |
24628996 | Powershell replace double quotes with single in a string | 6 | 2014-07-08 10:02:30 | <p>I just can't get it right</p>
<p>The below statement throws an exception and I cannot get the correct format </p>
<pre><code>$appendedQry = $appendedQry -replace "\"","'"
</code></pre>
<p>What would be the correct syntax?</p>
| 24,115 | 2,078,685 | 2017-10-18 07:07:36 | 24,629,190 | 13 | 2014-07-08 10:12:35 | 2,078,685 | 2014-07-08 10:12:35 | https://stackoverflow.com/q/24628996 | https://stackoverflow.com/a/24629190 | <p>It should be</p>
<pre><code>$appendedQry = $appendedQry -replace '"',''''
</code></pre>
| <p>It should be</p> <pre><code>$appendedQry = $appendedQry -replace '"','''' </code></pre> | 526 | powershell | <h1>Powershell replace double quotes with single in a string</h1>
<p>I just can't get it right</p>
<p>The below statement throws an exception and I cannot get the correct format </p>
<pre><code>$appendedQry = $appendedQry -replace "\"","'"
</code></pre>
<p>What would be the correct syntax?</p>
| q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,559 | bash | # Powershell replace double quotes with single in a string
I just can't get it right
The below statement throws an exception and I cannot get the correct format
```
$appendedQry = $appendedQry -replace "\"","'"
```
What would be the correct syntax? | It should be
```
$appendedQry = $appendedQry -replace '"',''''
``` |
23042428 | How do I dynamically set the type of PowerShell variables? | 6 | 2014-04-13 11:54:22 | <p>Is it possible to get a System.Type from a string and then apply it to a variable?</p>
<p>The following is the function that I tried to convert to make it safer (i.e. not involve invoking a string):</p>
<pre><code>Function ParseLine($Type, $VariableName, $Value){
Invoke-Expression "[$Type] `$$VariableName = $V... | 7,412 | 851,118 | 2017-01-13 15:43:36 | 23,045,679 | 13 | 2014-04-13 17:08:30 | 574,168 | 2017-01-13 15:43:36 | https://stackoverflow.com/q/23042428 | https://stackoverflow.com/a/23045679 | <p>You can cast variables to a specific type using the <code>-as</code> operator:</p>
<pre><code>Function ParseLine($Type, $VariableName, $Value){
Set-Variable $VariableName -Scope 1 -Value ($Value -as ($Type -as [type]))
}
</code></pre>
<p>That will use <code>-as</code> to create a type from the <code>$Type</cod... | <p>You can cast variables to a specific type using the <code>-as</code> operator:</p> <pre><code>Function ParseLine($Type, $VariableName, $Value){ Set-Variable $VariableName -Scope 1 -Value ($Value -as ($Type -as [type])) } </code></pre> <p>That will use <code>-as</code> to create a type from the <code>$Type</cod... | 526 | powershell | <h1>How do I dynamically set the type of PowerShell variables?</h1>
<p>Is it possible to get a System.Type from a string and then apply it to a variable?</p>
<p>The following is the function that I tried to convert to make it safer (i.e. not involve invoking a string):</p>
<pre><code>Function ParseLine($Type, $Variab... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,560 | bash | # How do I dynamically set the type of PowerShell variables?
Is it possible to get a System.Type from a string and then apply it to a variable?
The following is the function that I tried to convert to make it safer (i.e. not involve invoking a string):
```
Function ParseLine($Type, $VariableName, $Value){
Invoke... | You can cast variables to a specific type using the `-as` operator:
```
Function ParseLine($Type, $VariableName, $Value){
Set-Variable $VariableName -Scope 1 -Value ($Value -as ($Type -as [type]))
}
```
That will use `-as` to create a type from the `$Type` string, and then use that to cast `$Value`.
I am not sur... |
22102976 | Set a Rails environment variable locally (Mac OS X) | 6 | 2014-02-28 18:24:40 | <p>I'm trying to set environment variables in Rails. I'm following these docs: <a href="http://railsapps.github.io/rails-environment-variables.html" rel="noreferrer">http://railsapps.github.io/rails-environment-variables.html</a></p>
<p>One option it gives is to save environment variables in your <code>~/.bashrc</code... | 4,068 | 1,001,938 | 2014-02-28 18:36:21 | 22,103,105 | 13 | 2014-02-28 18:32:34 | 1,377,943 | 2014-02-28 18:32:34 | https://stackoverflow.com/q/22102976 | https://stackoverflow.com/a/22103105 | <p>I dont know which shell you are using. In case of <code>bash</code> , you can write this in your <code>~/.bashrc</code> file </p>
<pre><code>export GMAIL_USERNAME=abc@bah.com
</code></pre>
<p>then do this in terminal </p>
<pre><code> source ~/.bashrc
</code></pre>
<p>Now, check it console . I am sure it will be ... | <p>I dont know which shell you are using. In case of <code>bash</code> , you can write this in your <code>~/.bashrc</code> file </p> <pre><code>export GMAIL_USERNAME=abc@bah.com </code></pre> <p>then do this in terminal </p> <pre><code> source ~/.bashrc </code></pre> <p>Now, check it console . I am sure it will be ... | 369, 387, 4984, 46495, 85786 | bash, macos, ruby-on-rails, ruby-on-rails-4, rvm | <h1>Set a Rails environment variable locally (Mac OS X)</h1>
<p>I'm trying to set environment variables in Rails. I'm following these docs: <a href="http://railsapps.github.io/rails-environment-variables.html" rel="noreferrer">http://railsapps.github.io/rails-environment-variables.html</a></p>
<p>One option it gives i... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,561 | bash | # Set a Rails environment variable locally (Mac OS X)
I'm trying to set environment variables in Rails. I'm following these docs: <http://railsapps.github.io/rails-environment-variables.html>
One option it gives is to save environment variables in your `~/.bashrc`, using this syntax:
```
export GMAIL_USERNAME="mynam... | I dont know which shell you are using. In case of `bash` , you can write this in your `~/.bashrc` file
```
export GMAIL_USERNAME=abc@bah.com
```
then do this in terminal
```
source ~/.bashrc
```
Now, check it console . I am sure it will be there . |
20903988 | Unix command to search and replace text recursively | 6 | 2014-01-03 12:44:20 | <p>I am looking for a UNIX command that helps me to search for a text from all the files in a folder recursively and replace it with new value. After searching in internet I came across this command which worked for me.</p>
<blockquote>
<p>find ./myFolder -type f -print0 | xargs -0 sed -i 's/Application/whatever/g'<... | 12,649 | 2,065,083 | 2020-06-25 20:15:19 | 20,904,020 | 13 | 2014-01-03 12:46:35 | 548,225 | 2016-07-18 12:38:29 | https://stackoverflow.com/q/20903988 | https://stackoverflow.com/a/20904020 | <blockquote>
<p><code>Also are there any alternate commands that provides same functionality in Unix</code></p>
</blockquote>
<p>Yes you can do all this in find itself:</p>
<pre><code>find ./myFolder -type f -exec sed -i 's/Application/whatever/g' '{}' \;
</code></pre>
<p><code>-exec</code> option in <code>find</c... | <blockquote> <p><code>Also are there any alternate commands that provides same functionality in Unix</code></p> </blockquote> <p>Yes you can do all this in find itself:</p> <pre><code>find ./myFolder -type f -exec sed -i 's/Application/whatever/g' '{}' \; </code></pre> <p><code>-exec</code> option in <code>find</c... | 18, 387, 390, 578, 5282 | bash, recursion, regex, sed, shell | <h1>Unix command to search and replace text recursively</h1>
<p>I am looking for a UNIX command that helps me to search for a text from all the files in a folder recursively and replace it with new value. After searching in internet I came across this command which worked for me.</p>
<blockquote>
<p>find ./myFolder ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,562 | bash | # Unix command to search and replace text recursively
I am looking for a UNIX command that helps me to search for a text from all the files in a folder recursively and replace it with new value. After searching in internet I came across this command which worked for me.
> find ./myFolder -type f -print0 | xargs -0 se... | > `Also are there any alternate commands that provides same functionality in Unix`
Yes you can do all this in find itself:
```
find ./myFolder -type f -exec sed -i 's/Application/whatever/g' '{}' \;
```
`-exec` option in `find` is for:
> `-exec utility [argument ...] ;`
> True if the program named utility returns... |
20836612 | What does ${1-1} in bash mean? | 6 | 2013-12-30 09:20:05 | <p>I'm reading the scripts from <a href="https://github.com/NapoleonWils0n/bashfinder/blob/master/.bash_macosx" rel="noreferrer">here</a> and trying to understand what's going on. This function performs changing the directory of a Finder window:</p>
<pre><code>function ee {
osascript -e 'set cwd to do shell script "... | 6,563 | 1,867,715 | 2022-10-18 23:39:40 | 20,836,686 | 13 | 2013-12-30 09:25:06 | 551,045 | 2022-10-18 23:39:40 | https://stackoverflow.com/q/20836612 | https://stackoverflow.com/a/20836686 | <p>This means that if argument 1 (<code>${1}</code>) is not set, it will be set to 1.</p>
<p>See <a href="http://tldp.org/LDP/abs/html/parameter-substitution.html" rel="nofollow noreferrer">parameter substitution here</a>.</p>
<pre><code> ${parameter-default}, ${parameter:-default}
If parameter not set, use default.... | <p>This means that if argument 1 (<code>${1}</code>) is not set, it will be set to 1.</p> <p>See <a href="http://tldp.org/LDP/abs/html/parameter-substitution.html" rel="nofollow noreferrer">parameter substitution here</a>.</p> <pre><code> ${parameter-default}, ${parameter:-default} If parameter not set, use default.... | 387, 15718 | bash, osascript | <h1>What does ${1-1} in bash mean?</h1>
<p>I'm reading the scripts from <a href="https://github.com/NapoleonWils0n/bashfinder/blob/master/.bash_macosx" rel="noreferrer">here</a> and trying to understand what's going on. This function performs changing the directory of a Finder window:</p>
<pre><code>function ee {
os... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,563 | bash | # What does ${1-1} in bash mean?
I'm reading the scripts from [here](https://github.com/NapoleonWils0n/bashfinder/blob/master/.bash_macosx) and trying to understand what's going on. This function performs changing the directory of a Finder window:
```
function ee {
osascript -e 'set cwd to do shell script "pwd"'\
... | This means that if argument 1 (`${1}`) is not set, it will be set to 1.
See [parameter substitution here](http://tldp.org/LDP/abs/html/parameter-substitution.html).
```
${parameter-default}, ${parameter:-default}
If parameter not set, use default.
``` |
20269202 | Remove files from .zip file with Powershell | 6 | 2013-11-28 14:58:40 | <p>I am going to write a Powershell script to remove files from a .zip file.
In my .zip file, I have
test.txt (latest)
test1.txt (older)
test2.txt
....
testN.txt (oldest),
all with different file sizes (or in powershell, it's called Length).
I want to keep only 2G or smaller of them and remove the rest. It is r... | 16,436 | 1,970,698 | 2016-11-17 21:53:11 | 20,276,205 | 13 | 2013-11-28 23:31:59 | 1,630,171 | 2016-11-17 21:53:11 | https://stackoverflow.com/q/20269202 | https://stackoverflow.com/a/20276205 | <p>Adopting <a href="https://stackoverflow.com/a/20147320/1630171">this VBScript solution</a>:</p>
<pre class="lang-psh prettyprint-override"><code>$zipfile = 'C:\path\to\your.zip'
$files = 'some.file', 'other.file', ...
$dst = 'C:\some\folder'
$app = New-Object -COM 'Shell.Application'
$app.NameSpace($zipfile)... | <p>Adopting <a href="https://stackoverflow.com/a/20147320/1630171">this VBScript solution</a>:</p> <pre class="lang-psh prettyprint-override"><code>$zipfile = 'C:\path\to\your.zip' $files = 'some.file', 'other.file', ... $dst = 'C:\some\folder' $app = New-Object -COM 'Shell.Application' $app.NameSpace($zipfile)... | 526 | powershell | <h1>Remove files from .zip file with Powershell</h1>
<p>I am going to write a Powershell script to remove files from a .zip file.
In my .zip file, I have
test.txt (latest)
test1.txt (older)
test2.txt
....
testN.txt (oldest),
all with different file sizes (or in powershell, it's called Length).
I want to keep on... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,564 | bash | # Remove files from .zip file with Powershell
I am going to write a Powershell script to remove files from a .zip file.
In my .zip file, I have
test.txt (latest)
test1.txt (older)
test2.txt
....
testN.txt (oldest),
all with different file sizes (or in powershell, it's called Length).
I want to keep only 2G or smaller ... | Adopting [this VBScript solution](https://stackoverflow.com/a/20147320/1630171):
```
$zipfile = 'C:\path\to\your.zip'
$files = 'some.file', 'other.file', ...
$dst = 'C:\some\folder'
$app = New-Object -COM 'Shell.Application'
$app.NameSpace($zipfile).Items() | ? { $files -contains $_.Name } | % {
$app.Namespac... |
19585305 | Why does python subprocess zip fail but running at shell works? | 6 | 2013-10-25 08:50:52 | <p>I'm on Mac OS X using Python 2.7; using <code>subprocess.call</code> with <code>zip</code> fails yet running the <em>same command</em> at the shell succeeds. Here's a copy of my terminal:</p>
<pre><code>$ python
Python 2.7.2 (default, Oct 11 2012, 20:14:37)
[GCC 4.2.1 Compatible Apple Clang 4.0 (tags/Apple/clang-4... | 5,663 | 9,642 | 2018-01-18 19:53:52 | 19,585,362 | 13 | 2013-10-25 08:53:30 | 100,297 | 2013-10-25 08:53:30 | https://stackoverflow.com/q/19585305 | https://stackoverflow.com/a/19585362 | <p>Because running a command in the shell is not the same thing as running it with <code>subprocess.call()</code>; the shell expanded the <code>example/*</code> wildcard.</p>
<p>Either expand the list of files with <code>os.listdir()</code> or the <code>glob</code> module yourself, or run the command through the shell... | <p>Because running a command in the shell is not the same thing as running it with <code>subprocess.call()</code>; the shell expanded the <code>example/*</code> wildcard.</p> <p>Either expand the list of files with <code>os.listdir()</code> or the <code>glob</code> module yourself, or run the command through the shell... | 16, 390, 881 | python, shell, zip | <h1>Why does python subprocess zip fail but running at shell works?</h1>
<p>I'm on Mac OS X using Python 2.7; using <code>subprocess.call</code> with <code>zip</code> fails yet running the <em>same command</em> at the shell succeeds. Here's a copy of my terminal:</p>
<pre><code>$ python
Python 2.7.2 (default, Oct 11 2... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,565 | bash | # Why does python subprocess zip fail but running at shell works?
I'm on Mac OS X using Python 2.7; using `subprocess.call` with `zip` fails yet running the *same command* at the shell succeeds. Here's a copy of my terminal:
```
$ python
Python 2.7.2 (default, Oct 11 2012, 20:14:37)
[GCC 4.2.1 Compatible Apple Clang... | Because running a command in the shell is not the same thing as running it with `subprocess.call()`; the shell expanded the `example/*` wildcard.
Either expand the list of files with `os.listdir()` or the `glob` module yourself, or run the command through the shell from Python; with the `shell=True` argument to `subpr... |
19275530 | Timeout issue in Backup-SQLDatabase cmdlet | 6 | 2013-10-09 14:55:33 | <p>I’m trying to take back-up of a large database using “Backup-SQLDatabase” cmdlet using following statement, but I’m getting time-out error after 10 minutes.</p>
<pre><code>{Backup-SqlDatabase -ServerInstance $Server -Database $DatabaseName -BackupFile $BackUpFile -CompressionOption On -ConnectionTimeout 0 -Initiali... | 5,948 | 1,495,361 | 2013-10-10 07:21:51 | 19,289,484 | 13 | 2013-10-10 07:21:51 | 1,495,361 | 2013-10-10 07:21:51 | https://stackoverflow.com/q/19275530 | https://stackoverflow.com/a/19289484 | <p>I did some research on this and came around the following workaround : </p>
<p><code>$serverConn = new-object ("Microsoft.SqlServer.Management.Smo.Server") $server
$serverConn.ConnectionContext.StatementTimeout = 0</code></p>
<pre><code>Backup-SqlDatabase -InputObject $serverConn -Database abc -BackupFile "L:\123\... | <p>I did some research on this and came around the following workaround : </p> <p><code>$serverConn = new-object ("Microsoft.SqlServer.Management.Smo.Server") $server $serverConn.ConnectionContext.StatementTimeout = 0</code></p> <pre><code>Backup-SqlDatabase -InputObject $serverConn -Database abc -BackupFile "L:\123\... | 72, 493, 526, 3123 | backup, powershell, smo, sql-server | <h1>Timeout issue in Backup-SQLDatabase cmdlet</h1>
<p>I’m trying to take back-up of a large database using “Backup-SQLDatabase” cmdlet using following statement, but I’m getting time-out error after 10 minutes.</p>
<pre><code>{Backup-SqlDatabase -ServerInstance $Server -Database $DatabaseName -BackupFile $BackUpFile ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,566 | bash | # Timeout issue in Backup-SQLDatabase cmdlet
I’m trying to take back-up of a large database using “Backup-SQLDatabase” cmdlet using following statement, but I’m getting time-out error after 10 minutes.
```
{Backup-SqlDatabase -ServerInstance $Server -Database $DatabaseName -BackupFile $BackUpFile -CompressionOption O... | I did some research on this and came around the following workaround :
`$serverConn = new-object ("Microsoft.SqlServer.Management.Smo.Server") $server
$serverConn.ConnectionContext.StatementTimeout = 0`
```
Backup-SqlDatabase -InputObject $serverConn -Database abc -BackupFile "L:\123\abc.bak"
```
When we pass Server... |
17025450 | Get latest dates from an array per object group in Powershell | 6 | 2013-06-10 13:47:39 | <p>I have an array <em>$data</em> :</p>
<pre><code>PS> $data
Datum User Computer
----- --------- --------
10/06/2013 13:10:56 geb1@TESTDOMAIN.COM DC1$ ... | 26,357 | 1,816,781 | 2013-06-10 14:37:36 | 17,025,874 | 13 | 2013-06-10 14:09:34 | 9,833 | 2013-06-10 14:09:34 | https://stackoverflow.com/q/17025450 | https://stackoverflow.com/a/17025874 | <pre><code>$data | Foreach-Object {$_.Datum = [DateTime]$_.Datum; $_} |
Group-Object Computer |
Foreach-Object {$_.Group | Sort-Object Datum | Select-Object -Last 1}
</code></pre>
| <pre><code>$data | Foreach-Object {$_.Datum = [DateTime]$_.Datum; $_} | Group-Object Computer | Foreach-Object {$_.Group | Sort-Object Datum | Select-Object -Last 1} </code></pre> | 114, 526, 1263, 39333 | arrays, datetime, greatest-n-per-group, powershell | <h1>Get latest dates from an array per object group in Powershell</h1>
<p>I have an array <em>$data</em> :</p>
<pre><code>PS> $data
Datum User Computer
----- --------- -------- ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,567 | bash | # Get latest dates from an array per object group in Powershell
I have an array *$data* :
```
PS> $data
Datum User Computer
----- --------- --------
10/06/2013 13:10:56 geb1@... | ```
$data | Foreach-Object {$_.Datum = [DateTime]$_.Datum; $_} |
Group-Object Computer |
Foreach-Object {$_.Group | Sort-Object Datum | Select-Object -Last 1}
``` |
17021770 | move line which matches pattern to previous line | 6 | 2013-06-10 10:29:27 | <p>I have a file with structure </p>
<pre><code>12312
desc: bleh...
9938
desc: blah...
desc: bloh...
desc: blih...
desc: bluh...
9912
desc: blah...
</code></pre>
<p>and i want to move line which matches pattern "desc:" to previous line or delete '\n' in line which goes before every pattern "desc:".</p>
<p>desired ou... | 6,866 | 2,394,449 | 2021-04-21 22:30:30 | 17,022,177 | 13 | 2013-06-10 10:52:27 | 2,428,361 | 2013-06-10 10:52:27 | https://stackoverflow.com/q/17021770 | https://stackoverflow.com/a/17022177 | <p><code>sed</code> oneliner</p>
<pre><code>sed ':a $!N;s/\ndesc/ desc/;ta P;D'
</code></pre>
<p>Will output</p>
<pre><code>12312 desc: bleh...
9938 desc: blah... desc: bloh... desc: blih... desc: bluh...
9912 desc: blah...
</code></pre>
| <p><code>sed</code> oneliner</p> <pre><code>sed ':a $!N;s/\ndesc/ desc/;ta P;D' </code></pre> <p>Will output</p> <pre><code>12312 desc: bleh... 9938 desc: blah... desc: bloh... desc: blih... desc: bluh... 9912 desc: blah... </code></pre> | 387, 990, 5282 | awk, bash, sed | <h1>move line which matches pattern to previous line</h1>
<p>I have a file with structure </p>
<pre><code>12312
desc: bleh...
9938
desc: blah...
desc: bloh...
desc: blih...
desc: bluh...
9912
desc: blah...
</code></pre>
<p>and i want to move line which matches pattern "desc:" to previous line or delete '\n' in line w... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,568 | bash | # move line which matches pattern to previous line
I have a file with structure
```
12312
desc: bleh...
9938
desc: blah...
desc: bloh...
desc: blih...
desc: bluh...
9912
desc: blah...
```
and i want to move line which matches pattern "desc:" to previous line or delete '\n' in line which goes before every pattern "de... | `sed` oneliner
```
sed ':a $!N;s/\ndesc/ desc/;ta P;D'
```
Will output
```
12312 desc: bleh...
9938 desc: blah... desc: bloh... desc: blih... desc: bluh...
9912 desc: blah...
``` |
17015137 | OSX sed: how to use the escape character in the second field of a `s` operation? | 6 | 2013-06-09 23:20:15 | <p>On OSX:</p>
<pre><code>bash-3.2$ echo "abc" | sed 's/b/\x1b[31mz\x1b[m/'
ax1b[31mzx1b[mc
</code></pre>
<p>Whereas on Linux: </p>
<pre><code>$ echo "abc" | sed 's/b/\x1b[31mz\x1b[m/'
azc
</code></pre>
<p>and the z correctly shows up red.</p>
<p>Is this a limitation of bash 3.2? My Linux test here runs bash 4.1.2... | 3,907 | 340,947 | 2013-06-11 03:39:40 | 17,015,272 | 13 | 2013-06-09 23:43:18 | 89,817 | 2013-06-09 23:43:18 | https://stackoverflow.com/q/17015137 | https://stackoverflow.com/a/17015272 | <p>OS X's version of sed doesn't do the escape substitutions you're asking for. You can get around this by using <code>$'...'</code> to have bash do the substitution before handing the string to sed:</p>
<pre><code>$ echo "abc" | sed 's/b/\x1b[31mz\x1b[m/'
ax1b[31mzx1b[mc
$ echo "abc" | sed $'s/b/\x1b[31mz\x1b[m/'
azc... | <p>OS X's version of sed doesn't do the escape substitutions you're asking for. You can get around this by using <code>$'...'</code> to have bash do the substitution before handing the string to sed:</p> <pre><code>$ echo "abc" | sed 's/b/\x1b[31mz\x1b[m/' ax1b[31mzx1b[mc $ echo "abc" | sed $'s/b/\x1b[31mz\x1b[m/' azc... | 58, 369, 387, 390, 391 | bash, linux, macos, shell, terminal | <h1>OSX sed: how to use the escape character in the second field of a `s` operation?</h1>
<p>On OSX:</p>
<pre><code>bash-3.2$ echo "abc" | sed 's/b/\x1b[31mz\x1b[m/'
ax1b[31mzx1b[mc
</code></pre>
<p>Whereas on Linux: </p>
<pre><code>$ echo "abc" | sed 's/b/\x1b[31mz\x1b[m/'
azc
</code></pre>
<p>and the z correctly ... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,569 | bash | # OSX sed: how to use the escape character in the second field of a `s` operation?
On OSX:
```
bash-3.2$ echo "abc" | sed 's/b/\x1b[31mz\x1b[m/'
ax1b[31mzx1b[mc
```
Whereas on Linux:
```
$ echo "abc" | sed 's/b/\x1b[31mz\x1b[m/'
azc
```
and the z correctly shows up red.
Is this a limitation of bash 3.2? My Linux ... | OS X's version of sed doesn't do the escape substitutions you're asking for. You can get around this by using `$'...'` to have bash do the substitution before handing the string to sed:
```
$ echo "abc" | sed 's/b/\x1b[31mz\x1b[m/'
ax1b[31mzx1b[mc
$ echo "abc" | sed $'s/b/\x1b[31mz\x1b[m/'
azc
```
(You'll have to tru... |
16937788 | Get the Number of Rows in Column of a worksheet | 6 | 2013-06-05 10:40:46 | <p>I have an Excel sheet as follows:</p>
<pre><code>Id Name Address
-------------------
1 t1 Add1
2 Add2
3
</code></pre>
<p>I want to get the count of non-empty cells in each column, i.e.:</p>
<blockquote>
<p>Column ID → 3 rows<br>
Name → 1 row<br>
Address → 2 rows</p>
</blo... | 33,655 | 1,905,690 | 2019-07-19 10:54:52 | 16,938,712 | 13 | 2013-06-05 11:27:09 | 1,630,171 | 2013-06-05 11:27:09 | https://stackoverflow.com/q/16937788 | https://stackoverflow.com/a/16938712 | <p>Try something like this:</p>
<pre><code>$xl = New-Object -COM "Excel.Application"
$xl.Visible = $true
$wb = $xl.Workbooks.Open("C:\path\to\your.xlsx")
$ws = $wb.Sheets.Item(1)
$rows = $ws.UsedRange.Rows.Count
foreach ( $col in "A", "B", "C" ) {
$xl.WorksheetFunction.CountIf($ws.Range($col + "1:" + $col + $rows... | <p>Try something like this:</p> <pre><code>$xl = New-Object -COM "Excel.Application" $xl.Visible = $true $wb = $xl.Workbooks.Open("C:\path\to\your.xlsx") $ws = $wb.Sheets.Item(1) $rows = $ws.UsedRange.Rows.Count foreach ( $col in "A", "B", "C" ) { $xl.WorksheetFunction.CountIf($ws.Range($col + "1:" + $col + $rows... | 526 | powershell | <h1>Get the Number of Rows in Column of a worksheet</h1>
<p>I have an Excel sheet as follows:</p>
<pre><code>Id Name Address
-------------------
1 t1 Add1
2 Add2
3
</code></pre>
<p>I want to get the count of non-empty cells in each column, i.e.:</p>
<blockquote>
<p>Column ID → 3 rows<br>
... | q.PostTypeId = 1; a.PostTypeId = 2; EXISTS tag '%bash%' OR '%shell%'; a.Body contains code block; q.Score > 5; a.Score > 10 | 10,570 | bash | # Get the Number of Rows in Column of a worksheet
I have an Excel sheet as follows:
```
Id Name Address
-------------------
1 t1 Add1
2 Add2
3
```
I want to get the count of non-empty cells in each column, i.e.:
> Column ID → 3 rows
> Name → 1 row
> Address → 2 rows
How do I do this in pow... | Try something like this:
```
$xl = New-Object -COM "Excel.Application"
$xl.Visible = $true
$wb = $xl.Workbooks.Open("C:\path\to\your.xlsx")
$ws = $wb.Sheets.Item(1)
$rows = $ws.UsedRange.Rows.Count
foreach ( $col in "A", "B", "C" ) {
$xl.WorksheetFunction.CountIf($ws.Range($col + "1:" + $col + $rows), "<>") - 1
}... |
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