date int64 1,220B 1,719B | question_description stringlengths 28 29.9k | accepted_answer stringlengths 12 26.4k | question_title stringlengths 14 159 |
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1,404,212,370,000 |
Is there a way to detach all terminals from a running tmux session, except the one i'm actually using?
It seems a little weird, but the meaning of doing this is to keep some "persistency" layer to end user remote session, while ensuring that the user is using the system on only "one shell".
As explained here, it's ea... |
If I've understood your question correctly, the -d option to attach-session does what you want:
tmux -2 attach-session -d -t $WHOAMI
This attaches to the named target session and detaches all other clients.
You can do something similar after the session is attached, with detach-client's -a and -t options: name the cl... | Detach all other terminals except current one from a tmux session |
1,404,212,370,000 |
I want to create a screen shortcut ^q to detach from the current session.
In Tmux I would use bind -n command.
In screen I'v tried:
bind q detach works with prefix as C-a q
bind ^q detach doesn't work at all
Is that even possible to bypass prefix in the screen so simple C-q could work?
|
You chose a difficult character. For example, if you had tried Control-P it would have been a bit easier, ie (using bindkey not bind):
bindkey ^p detach
and it would have worked. You can try the same with ^q and it probably won't seem work. The problem is that Control-Q is also used by your tty to do flow-control (xo... | Bind Screen shortcut to Ctrl+Q without prefix |
1,404,212,370,000 |
I am facing problems with my configuring screen.
My screen.rc is very simple and looks like this:
altscreen on
termcapinfo xterm ti@:te@
I wanted to configure screen to have the same behavior as if I connected directly using SSH client like MobaXterm. So what I wanted to achieve was:
A possibility to scroll in vim (... |
It turned out the problem was caused by a stupid line in .bashrc
TERM=xterm; export $TERM
so after running screen it had TERM=xterm instead of TERM=screen. After removing this line the problem disappeared.
| Screen - weird behavior after exiting Vim |
1,404,212,370,000 |
The program I want use can be started via
./myprogram < input_part1.txt > output_part1.txt
How can I start four jobs of myprogram in a BASH-script where each job runs in a separate SCREEN-session? The sessions do not exist before I start the script.
I tried:
#!/bin/bash
screen -mdS test1 ./myprogram < input_part1.tx... |
For a single session, I use something like that:
cat > screenrc-test <<EOF
screen -t test1 sh -c "./myprogram < input_part1.txt > output_part1.txt"
screen -t test2 sh -c "./myprogram < input_part2.txt > output_part2.txt"
screen -t test3 sh -c "./myprogram < input_part3.txt > output_part3.txt"
screen -t test4 sh -c "./... | How to start several jobs in different screen sessions in a Bash-script? |
1,404,212,370,000 |
The bindkey keyword in .screenrc is preceded by some cryptic keys that correspond to some keybouard binding. How can I figure out what these are? Google and GNU Screen Documentation did not show the results I was looking for.
For example, how would you found the bindings below without someone specifically telling you ... |
The keycodes vary somewhat from terminal to terminal, but check out this resource.
| screenrc: find out the keys bound by bindkey |
1,404,212,370,000 |
The following command screen -t 'fubar' cmd will create a new screen window with the command cmd running in it and will set the focus to this window.
How can I keep the focus in the current screen window, not the new one?
|
I'm not sure that you can do it in one go, here is a workaround:
screen -t 'fubar' cmd & sleep .01; screen -X other
| Start a GNU screen window in the background/without focus |
1,404,212,370,000 |
I run a lot of long running processes (simulations) that print progress to STDOUT. I occasionally forget to redirect to STDOUT to a file I can grep, and it's usually too far along to restart.
QUESTION: Without stopping the process, is there a way I can hook into another STDOUT?
These are always running in GNU screen w... |
There is a clever hack mentioned here that uses GDB to attach to the process, and a utility named dupx wraps up this functionality.
From the dupx manpage:
Dupx is a simple utility to remap files of an already running program.
Shells like Bash allow easy input/output/error redirection at the time
the program is st... | Redirecting/grep'ing an existing shell's STDOUT |
1,404,212,370,000 |
I have a remote server running CentOS 7 I can only access by SSH.
I want two java servers running on them at all times, even after ISP does reboots etc. S
So I have tried to make a systemd service that starts the two java servers in a screen. I do not get any error messages when I start the service but it instantly di... |
Adding: "RemainAfterExit=yes" under the [Service] section will let the screen remain open.
| Problem setting up systemd service to run screen at reboot |
1,404,212,370,000 |
How can I get a confirmation before I exit screen (when typing exit on the command-line). Is this possible?
|
I approached this by masking the exit command with a function; the function checks to see if you're within screen, and if you're the only child process left of that screen process.
exit() {
if [[ "$(ps -o pid= --ppid "$(ps -o ppid= -p "$$")" | wc -l)" -eq 1 ]]
then
read -p "Warning: you are in the last screen... | How can I get a confirmation before exiting screen? |
1,404,212,370,000 |
I'm trying to figure out how to create a command called runbg that will accept sub-commands to run in the background and create a split screen for each sub-command. When a sub-command completes successfully, the split screen is closed; if a sub-command fails, then the screen stays open with the error until the user cl... |
You can do it with tmux by stringing together split-window and send-keys like this:
tmux new session \; split-window -v \; send-keys 'ping -t 5 google.com' C-m \; split-window -h \; send-keys 'ping -t 10 microsoft.com' C-m \;
| Programmatically run background tasks in a split screen? |
1,404,212,370,000 |
Since I have started using screen to start text-mode (console) email client (namely alpine), I have never lost partially written email due to network disconnect. Very useful.
However starting email client is now a bit involved:
Check if there is old session with screen -list
Depending on the previous step:
If ther... |
Use an explicit session name (-S option), and use -RR to reattach to an existing session or create one if there is none.
alias m='screen -S alpine -d -RR alpine'
| How to reconnect to 'screen' session or start a new command |
1,404,212,370,000 |
I have a python script that will write some general logging to the console. I've redirected this to a log file using the typical python -u jbot.py | tee -a jbot.log. This works fine, I get console output and logfile input. However, when attempting to run this under screen:
screen python -u jbot.py | tee -a jbot.log
I ... |
You need to do something like this:
screen sh -c 'python -u jbot.py | tee -a jbot.log'
Basically, before you were piping the output of screen (not of your python script directly) to the log. Screen takes a command to execute as its argument, which it does itself not using a shell. So you need to explicitly make it ru... | No logfile output when running script under screen, with console redirect (tee) |
1,404,212,370,000 |
Depending on how I run screen, it either does or does not have the right TERMCAP info.
The symptom of this is that colors don't always show up in my terminal correctly (eg: ls, vim syntax highlighting, etc).
This works fine:
$ echo $TERMCAP
<empty output>
$ screen -S foo
$ screen -r foo
<now I'm inside a screen se... |
When you use the -d -m options, screen starts in detached mode, and in that case does not attempt to improve its terminal description based on your current TERM variable. It only looks for your TERM variable when it is started normally (not detached). When you attach to the session which was started detached, it is ... | GNU Screen: Strange TERMCAP when using -d -m |
1,404,212,370,000 |
I am trying to create a new screen so that the screen is detached at first, and its current folder is cd /home.
When I execute screen -dm "cd /home" (the parameter -dm means "Start screen in detached mode. This creates a new session but doesn't attach to it".) I get the error message:
Cannot identify account 'cd '.`
... |
The latter
screen -dm "$(cd /home)"
is substituted by the shell to get the message from CDPATH which shows which directory was reached by the cd command. But the cd command only applies to the subshell, and not the command-line that screen sees.
The former is not substituted, and screen does not know what to do with... | screen -dm: "Cannot identify account" |
1,404,212,370,000 |
I want to run some long calculation jobs in the background. I choose screen. However I found screen didn't accpet redirection. for example
screen -dmS name ls>ls.dat
won't generate ls.dat.
Fortunately, screen -L will output screen's log to a file. However, what it does is to append to previous log file, even if I pki... |
I don't believe you can force screen to overwrite the log. It logs to screenlog.%n by default, where %n is the screen window number (so each window has it's own log). If that file exists, it appends to it.
However, you can tell screen to use a different filename, including a timestamp, so you'll get a new log file e... | how to force `screen -L` to overwrite log? |
1,404,212,370,000 |
I'm having a hard time finding a "command character" for GNU-screen that does not collide with some key combination that I already use.
Through Emacs (and org-mode, and my regular shell, etc.), pretty much all the command characters consisting of Ctrl + [A-Z] are off-limits.
I figure that, if there were a simple, and ... |
You can use any function key that Screen recognizes as the escape character. Set the escape character (more precisely, the escape byte) to one that you never type, for example \377 which is never used by UTF-8. Bind the key you want to use as the escape key to command, for example F12 (which is F2 in termcap speak — s... | How to search for a suitable "command character" for GNU-screen? |
1,404,212,370,000 |
I have zsh shell in a Linux server, and connect to the server from screen sessions in different computers. I'm trying to get control keys, such as home and end, to function correctly.
Because zsh doesn't use the GNU Readline library, I need to take care of mapping the terminal sequences to zsh commands. First I use zk... |
Rather than simply use TERM=screen, the screen program has a feature which you could use to set different values of TERM. This assumes that you've installed a complete ncurses terminal database, and use a TERM outside screen that corresponds to the actual terminal.
For a given TERM, if there is a corresponding "scree... | How to setup zkbd (zsh keyboard bindings) in a server? |
1,404,212,370,000 |
I am running emacs in daemon mode and I got dissconnected from the server on which it was running. After re-connect, when I run
emacsclient -nc
I get the error
connect localhost port 6012: Connection refused
ERROR: Display localhost:12.0 can't be opened
The daemon still seems to be running, but I can't figure out h... |
Remote GUI (X11) connections go through TCP port 6000+n where n is the display number¹. So the two messages refer to the same problem: some program tried to connect to display 12 and failed.
Emacsclient doesn't make X11 connections, Emacs does. So if you see this message, it means Emacsclient managed to contact Emacs ... | emacsclient connection refused |
1,404,212,370,000 |
I have one computer running Debian Wheezy(screen version 4.01.00devel) and another one Debian Squeeze(screen version 4.00.03jw4) and under both of them screen automatically starts another process named screen. For example:
init(1)-+-acpid(1926)
|-sshd(2139)---sshd(2375)---bash(2448)---screen(6649)---screen(665... |
The outer screen (PID 6649) connects to the terminal you started from, and is terminated when you detach (Ctrl+a,d).
The inner screen (PID 6650) is not connected to that terminal, but rather controls its own pseudo-terminal (pty) device, to which the bash started from it is connected.
What happens is that when you ent... | Why there are two sequential screen processes? |
1,404,212,370,000 |
Here is what I am trying to do:
open Gnome terminal
launches with my command prompt
ssh into work via VPN
launch screen
create two screen windows
try to use F3 and F4 as "prev" and "next" with no luck.
try to use F6 and F7 as "prev" and "next" works fine.
Here is my .screenrc
hardstatus on
hardstatus alwayslast... |
I think I know what it is.
xterm used to send different escape sequences for the F1 to F4 keys.
From the xterm documentation:
Older versions of xterm implement different escape sequences for F1
through F4. These can be activated by setting the oldXtermFKeys
resource. However, since they do not correspond to any... | How do I fix this strange behavior with ssh, gnome terminal and gnu screen where function keys F1 through F4 are not accepted? |
1,404,212,370,000 |
I use Screen with a lot (more than 10) of local Bash sessions inside.
I send some processes (like vi file) to the background and switch between sessions very often and sometimes it's very annoying to find out where the file I have to edit is being already opened.
Is there a way to share such background processes to be... |
No, the documentation for bash job control doesn't mention any support for sharing or adopting jobs between different bash sessions.
However, reptyr will allow you to take control of a job that was backgrounded in another session, which might be close enough to what you want.
reptyr requires the pid of the job you wan... | Share background jobs between shells |
1,404,212,370,000 |
I have a shell program in Ubuntu 16.04, named foo, that outputs status update when I press any button. It's located in /usr/local/bin/foo, so I can call the program anywhere. The program works like this:
$ foo
Welcome
after I press a key, it will show:
Time now is 01:23:45
If I press Ctrl-C, it will exit just like m... |
From what I can see, your requirements are to be able to:
Run several instances of the program concurrently.
Get terminal control over any of the instances at any time.
Send instances back to background as soon as they output.
If we stick to the & approach, then yes, there is a shortcut for (3). When a program has c... | Multiple instance of same program, obtaining output |
1,404,212,370,000 |
I am in a bit of a tricky situation where I need to connect to a server via SSH through a Jenkins plugin. There is no option to pass in the -t flag and get myself a pseudo-tty session so I can use screen.
Is there anyway to get around this once already connected besides establishing a nested SSH session?
|
If you want to use screen to display something, you will need a terminal.
If you only want to start a new session, but not display it, invoke screen -m -d. The session starts out detached.
If you only want to interact with an existing session, use the -X option to send a command to that session. This doesn't attach to... | Possible to use screen via ssh without -t? |
1,467,401,272,000 |
I don't have control over the shell prompt or preexec, and I want to keep the titles I assign to screens. Can I get screen to ignore title-escape-sequences?
|
If you have a terminal whose description "looks" like xterm, screen assumes it does everything like xterm. For whatever reason, it equates xterm-titles and xterm-mouse features:
in termcap.c, it checks if either the TERM environment variable contains the string "xterm" or "rxvt" — or it checks if there is a key defi... | How do I stop title-escape-sequences from clobbering my GNU screen titles? |
1,467,401,272,000 |
I'm using Ubuntu 14.04.
I know how to get my screen resolution using xrandr or xdpyinfo. But with these tools I get the maximum available desktop size ....
I have a menu bar at the top that takes some of the available desktop. I have a launcher on the left that takes some of the available desktop. How can I find t... |
After much searching I found the xprop command which returns the information I was looking for.
available_screen=$(xprop -root | grep -e 'NET_WORKAREA(CARDINAL)') #get available screen dimensions
available_screen=${available_screen##*=} #strip off beginning text
current_screen_width=$(echo $available_screen | ... | get available screen size after considering space used by the menu bar and launcher |
1,467,401,272,000 |
I wan't to be able to copy-paste the contents of my screen scrollback buffer into various browser text fields, usually when pasting an excerpt from a log file. One way that works well is the following:
$ xsel -bi
<CTRL-A ]> Enter
<CTRL-d>
Then simply pasting into the browser with CTRL-v. This works well for short exc... |
If you don't mind using a temporary file, you could do:
C-a : writebuf filename
$ xsel -bi < filename
| Copy a large (over 4k) selection of text from the screen scrollback buffer into the system clipboard |
1,467,401,272,000 |
I have fedora 20; after last update, when I am using screen command, the terminal is closing instantly with message:
[screen is terminating]
and not letting me to do anything with normal user, but
from root account everything is fine.
Any ideas what is wrong?
this is from root account, after typing "screen":
and th... |
I hit the same thing. It seems to be caused by the following bug: https://bugzilla.redhat.com/show_bug.cgi?id=884673
# mount | grep devpts
devpts on /dev/pts type devpts (rw,relatime,mode=600)
Remounting /dev/pts with proper permissions helped me:
mount -o remount,gid=5,mode=620 /dev/pts
And of course editing /etc/fs... | fedora 20 screen command terminating automatically |
1,467,401,272,000 |
I once used a server where using the screen command gave me a colorful header which told me the name of the screen, the total number of screens, the runtime, cpu utilization and maybe some hotkeys to cycle between the instances.
How can I achieve this header on my Ubuntu Precise Pangolin server instance (I have admin... |
You need to modify your ~/.screenrc if you don't have one you can copy it with:
cp /etc/screenrc ~/.screenrc
and then add the following line.
caption always "%{rw} * | %H * $LOGNAME | %{bw}%c %D | %{-}%-Lw%{rw}%50>%{rW}%n%f* %t %{-}%+Lw%<"
You can change the caption to your personal needs.
Therefor you should read t... | How to see screen information at the top of terminal? |
1,467,401,272,000 |
I'm using screen with a hardstatus listing my open windows, I usually have a few named (mail, im, top, etc.) and a few with blank name.
Some program changes the current window name, for my named window that's not a problem: Ctrl+a, A: allow me to change back the name. but the same command does not want an empty string... |
Invoke the screen colon command with Ctrl+a, : and enter the command title "".
| clear gnu screen window name |
1,467,401,272,000 |
Overview of UTF8 screen re-attachment issues.
Problem:
Creating a screen that uses UTF8 works perfectly until re-attaching said screen session.
Steps:
ssh remothost
screen -U -S ttytter
[detach screen]
[exit ssh]
xterm -class 'xterm-ttytter' -geometry 175x20 \
-title 'ttytter' -e ssh -t remotehost "screen -dU -r tty... |
Solution
Different 'classes' load different configuration files from /etc/X11/app-default/. My problem was that my new xterm class did not have a matching configuration file.
# cd /etc/X11/app-default
# ln -s XTerm-color xterm-ttytter
The above will link XTerm-color's class settings for xterm-ttytter by creating a s... | Resuming screen with UTF8 enabled breaks character input |
1,467,401,272,000 |
I have my gvim setup so that I can select word-wise with Ctrl-Shift-Right, Ctrl-Shift-Left etc. (yes, I know it's a bad habit, but it works for me..).
Unfortunately, these key combinations delete text when used in console vim inside a screen session. I believe this is because the two key combinations produce the codes... |
Clearly Vim doesn't have a binding for the key sequence ␛[1;6D but has one for some other key sequence that begins with ␛[1, probably ␛[1~ (usually sent by the Home key). Add remappings to your .vimrc to declare that ␛[1;6D is really Ctrl+Shift+Left and so on. I think the following should do the trick:
noremap <ESC>[1... | console vim in screen session: remap Ctrl-Shift-Left, Ctrl-Shift-Right to not delete lines |
1,467,401,272,000 |
I managed to replace the audible bell by a visual clue in the active window, but for background windows, can I get an audible bell instead of a visual notification ?
|
Redefine "bell_msg" to include a literal "^G". (That is, the two characters carat and Capital-G.)
From the screen manpage:
bell_msg [message]
When a bell character is sent to a background window,
screen displays a notification in the message line. The
notification message can be re-defined by t... | How can I have screen transmit an audible bell produced in a background window? |
1,467,401,272,000 |
Is it possible to divorce my input from the overall shell using Screen? What I'm aiming for is akin to a status line that expands if I type more than would fit within a single line and is 'submitted'/'sent' to the shell when I press enter.
I'm looking to put together a simple configuration to use as a MUSH/MUD/MUCK/M... |
A good architecture would be to divide the screen into two windows, one for command input and one for program display. That's basically what a normal MUD client would do. You can do that in Screen with the split command (C-a S).
Create a named pipe to transmit your input from the input window to the telnet window: mkf... | Divorced input line in GNU Screen |
1,467,401,272,000 |
When I'm in a gnu screen I can split horizontally (or vertically) and start a terminal session in the new region. If I detach from this screen with Ctrl-a,d and then resume, now I just see the second region of the split in the entire window. I know the first region is still there somewhere because if I type exit in ... |
See GNU Screen FAQ
When I split the display and then detach, screen forgets the split.
(The implied question being, “How do I keep my split windows over a detach?”)
The short is answer is that you can't. The longer answer is that you can fake it. (Note: the next screen release, probably numbered 4.1.0, will be able t... | resume gnuscreen with split area |
1,467,401,272,000 |
I'm trying to create a script that runs in terminal is automatically started in a raspberry pi 'screen' output. The problem here is that I need sudo privileges inside the script, and that once the process is running I don't see the request for the password.
One example of the script is the following (if I get this to ... |
If I read the man page correctly, openvpn can act as a daemon (i.e. go to the background itself) with the --daemon switch.
So if you don't need screen specifically, you might be able to go with:
sudo openvpn --daemon --config /etc/openvpn/pia_netherlands.conf
Some other alternatives:
start screen to run the script,... | Run script using 'screen' with sudo privileges |
1,467,401,272,000 |
I want to share a screen session, but this is harder then it seems for me. What I did was yum install screen then I made a session with root screen -S test. After that i made it multiuser Ctrl+A :multiuser on.
I started a new SSH connection logged in as Foo and did screen -ls. All I get is there is no socket at /var... |
Since your user doesn't actually own the session it won't show up when using screen -ls.
You need to use
:acladd <username>
and then to attach
screen -r root/test
more info
| How to share GNU Screen sessions |
1,467,401,272,000 |
I have about 15 instances of screen running on my linux server. They are each running processes I need to monitor. I had to close terminal (hence the reason I launched screen).
Is there a way to reopen all 15 instances of Screen in different tabs without having to open a new tab, login to the server, print all the a... |
This python script just did the job for me. I made three screen sessions and this fires up three xterms with the sessions reattached in each. It's a bit ugly but it works.
#! /usr/bin/env python
... | How to resume multiple instances of Screen from command line with minimal steps? |
1,467,401,272,000 |
I run a console window through my PuTTY session.
That console windows has a column width of 140.
When I start the screen session, the console shrinks to 80 columns.
I do not see this behavior on CentOS 5, only on CentOS 6.
Does anybody know what has to be tweaked?
|
Sorry, forgot to answer with my own solution to this problem.
Turns out CentOS 6 disables this line in its /etc/screenrc script:
termcapinfo xterm Z0=\E[?3h:Z1=\E[?3l:is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;4;6l
I was able to restore the functionality by putting this line into my local ~/.screenrc file.
Here is the content ... | Why CentOS 6 adjusts console width when running screen? |
1,467,401,272,000 |
Sometimes the SSH shell featuring a active screen session to my remote server gets broken (internet line not very stable, for example) with the session still attached.
Then I SSH again into the server, and try to resume the screen session:
luis@Zarzamoro:~$ screen -r
There is a screen on:
9166.pts-2.Zarzamor... |
Two points:
You do not have to specify the whole pid+session name (screen accepts a reasonable abbreviation).
You may get better results with the -x option.
From the manual page:
-r sessionowner/[pid.sessionname]’
Resume a detached screen session.
-x
Attach to a session which is already attached elsewhere ... | GNU Screen: can not resume the screen from a broken remote session |
1,467,401,272,000 |
I am working on an HPC with LSF job system.
screen works fine on logon node and most of the computation nodes which I can ssh into them. which command shows that screen is located under /usr/bin. But I found on some node, bash just can not find screen, and mysteriously, I can not find screen under /usr/bin on that no... |
If you have ncurses installed in /home/myInstall_ncurses, and there are lib and include subdirectories of that:
export LDFLAGS='-L/home/myInstall_ncurses/lib'
export CPPFLAGS='-I/home/myInstall_ncurses/include'
./configure --prefix='/where/to/install/screen'
make
make install
| Can not find screen and how to install it without network and administration? |
1,467,401,272,000 |
When I ssh to a server and start a script that is supposed to run for several days, it stops executing some time after I log off. Why? I suppose the server runs 24/7.
And what does screen/tmux do to prevent this from happening?
|
From an operating system's point of view, every running program is a process. When the kernel is done initializing it will start one process, mostly init. Whether it is SYSV init or systemd is not relevant for this discussion, one process is started. Every other program is started by another process. This creates a re... | Why do you need screen/tmux to keep a remote program running |
1,467,401,272,000 |
Whenever I use the script command to record the keys I type or when I activate the logging mode in screen, all BS (Backspace) and ESC (Escape) key presses are also included in the file. e.g: cd ~/foo/tpBSBStmp.
Is there a way to auto remove the BS or the ESC from the file so the final recorded command included in the ... |
The output of script will always contain linefeeds, backspaces and ANSI escape sequences as stated in the manpage. Examples of programs that will correctly display all these are cat and more. cat typescript and more typescript will display typescripts exactly as it looked when you recorded them.
If you still want to c... | Remove BS and ESC from Log files |
1,362,151,169,000 |
Further to my previous question on screen not splitting my terminal , I got to the point where I can split my terminal horizontally but not vertically . This documentation says that vertical splitting requires screen >= 4.1. So how can I find out which version of screen I am using?
|
Type Ctrl-A then v. You'll get something on the status line that looks like
screen 4.00.03jw4 (FAU) 2-May-06
| How can I find out which version of screen I am using? |
1,362,151,169,000 |
I would like to run a bash scrpit while using a screen session, here is my script :
#!/bin/bash
for i in 1 5 18 20
do
screen -S output_${i}
./run_my_program
screen -d
The problem is that the screen session does not detach using screen -d (but detach with the keyboard shortcut ctrl-a d), any suggestion ?
Thanks.
|
You don't have to "enter" the screen session to get it to run, just use -dm and it will start the session in detached mode:
for i in i 5 18 20; do
screen -dm -S "output_$i" ./run_my_program
done
| Detach from screen session inside bash script |
1,362,151,169,000 |
In ZSH prompt expansion, the command %E is supposed to "Clear to end of line."
This works. We see it in the grey bar going all the way across.
However, if I call "screen", the %E stops working:
Any idea what the cause of this is, and how it can be fixed?
|
When you send one of the ECMA-48 erase control sequences, whether the erasure uses the current background colour or the default background colour varies amongst different terminal types. (In the terminfo database, there is a capability that allows programs to determine what the terminal that they are talking to will ... | Clear to end of line uses the wrong background color in screen |
1,362,151,169,000 |
I keep a screen session running on a dev box at work, and I ssh into my dev box and resume my screen session while I'm at work. From there, I hop to other machines.
Occasionally, I find myself ssh'ing to a remote host from my already-remote-screen-session-over-ssh when that remote host I'm ssh'ed to doesn't allow me t... |
To kill the nth SSH session, type <enter>, then 2^(n-1) ~, then .. (~~ sends the escape character; thus, two tildes will cause the first SSH to send it to the second SSH, which will then pick up the dot and die. Extrapolate as necessary for deeper nesting.)
I have a similar situation; my solution is to have Mosh on th... | ssh -> screen -> ssh - how to kill remote screened ssh without killing original ssh session |
1,362,151,169,000 |
I'd like to run on a list of servers and run remotely a script while using screen.
Manually, I'd do:
screen -RD
./run_script
and manually remotely I'd do:
ssh root@server "screen -RD && ./run_script"
but what happens in reality is that screen -RD is running and when I type exit only then it starts running the script... |
You use the -X switch. From the man page:
-X Send the specified command to a running screen session. You can
use the -d or -r option to tell screen to look only for attached
or detached screen sessions. Note that this command doesn't work
if the session is password protected.
To combine... | How to run a script on a remote machine using the screen command and ssh? |
1,362,151,169,000 |
Is there a way of creating new window in GNU screen with title specified while creating the window itself.
I know that I can create a new window and then set the title using ^A A but is there a way of mentioning tilte while creating the window itself.
|
Short answer:
^A : screen -t title command
^A: brings up the screen prompt, and the rest of the line is a command to create a window with title "title" running command "command".
Below is the relevant documentation for the screen subcommand from the screen(1) manpage.
screen [-opts] [n] [cmd [args]|//group]
Es... | GNU Screen: Creating new window with title specified |
1,362,151,169,000 |
I have a few detached screens running. Now I’d like to see their current state for each of them. Currenlty, I do
$ screen -r
# look at the cryptic numbers
$ screen -r <paste number one>
# look at output
<Ctrl-A> D
$ screen -r
# look at the cryptic numbers to find the next one
$ screen -r <paste number two>
# look at o... |
I think time shows that the answer to this question is simply: No, it is not possible.
| Display content of all currently detached screen |
1,362,151,169,000 |
I Have recently started configuring "screen", I have included my .screenrc below. I have a problem that if windows 0 & 1 (containing bash) are idle for about 10 mins they will close only leaving window 2 containing irssi. Have I done something wrong? is there something i can do to stop this from happening? I have trie... |
Is the TMOUT environment variable set (nothing to do with screen)? If it's set to 600, then bash will close the session after 600 seconds (10 minutes).
| Configuring screen, window problems |
1,362,151,169,000 |
I have a ruby terminal script that I would like to print out hyperlinks. I achieve that like so:
puts("\e]8;;https://example.com\aThis is a link\e]8;;\a")
This works perfectly fine in a "normal" terminal (gnome-terminal btw) window.
But I need to run this script within GNU screen, where the escape-sequence simply has... |
You can pass through some text to the terminal screen itself runs in by putting it inside an ESC P, ESC \ pair (\033P%s\033\\ in printf format).
So you should bracket inside \eP..\e\\ pairs all the parts of the sequence, except for the text which will appear on the screen ("This is a link"):
printf '\eP\e]8;;https://e... | Using terminal escape-sequences within GNU screen |
1,362,151,169,000 |
This is how the output of screen -ls looks like for many years on one older Debian machine:
artax:~> screen -ls
There are screens on:
46785.pts-6.artax (08/26/2019 04:41:05 AM) (Detached)
2499.pts-0.artax (05/11/2019 07:30:55 PM) (Detached)
artax:~> screen --version
Screen ve... |
version 4.0.1 is very old :)
the creation timestamp is a debian specific patch
source :
https://salsa.debian.org/debian/screen/blob/ab7d6dee8d34b09b192ae438a1639e53bcee2e29/debian/patches/80EXP_session_creation_time.patch
because the number is the pid of screen , you can use ps to display the starting time of one p... | screen -ls no longer displays session start date/time? |
1,362,151,169,000 |
I run Biglybt as a daemon inside a screen session using the following command
screen -c /home/pi/.screenconf -L -dmS Biglybt_screen /usr/bin/java -cp "/usr/share/java/jna.jar:/home/pi/biglybt_stock/BiglyBT.jar:/home/pi/biglybt_stock/dorkbox-systemtray.jar:/home/pi/biglybt_stock/commons-cli.jar:/home/pi/biglybt_stock/l... |
Thanks to @ErikF and support from biglybt github account I was able to solve the issue, this service file now works for me
[Unit]
Description=BiglyBt daemon
After=network-online.target
[Service]
Environment="DISPLAY=:0.0"
Type=simple
User=pi
Group=pi
ExecStart=/usr/bin/java -cp "/usr/share/java/jna.jar:/home/pi/bigl... | Stop systemd service by sending command to screen session |
1,362,151,169,000 |
I've just started using screen for the first time, and I somehow got it into a state where it wasn't recognizing any commands any longer. Ctrl-A n, Ctrl-A p etc wouldn't work. Meanwhile my cursor was also frozen in emacs, which never happens to me.
So I opened another terminal, hoping that I could just reattach to scr... |
You're probably now connected to the old session, but the session may be in a wonky state for some reason. Try pressing Control-Q first: if XON-XOFF handshaking is enabled in the pseudo-terminal you've using to connect to the screen session, it might allow the session to resume.
(Control-S is the XOFF control charact... | screen is dead and can't reattach? |
1,362,151,169,000 |
I use iTerm2 on Mac and have customized control + ← and control + → to send hex 0x01 and 0x05 when pressed - which makes the cursor jump to the start and end of the line when typing or editing commands (opposed to one word at a time) - and the alt key plus an arrow makes the cursor move one word at a time.
This works ... |
The code 0x01 is Control-A which is the default command character in screen, so when you do control + ← twice you have the default action binding of other, i.e. other window, hence the message.
You can change to a different command character, eg Control-b when you start screen:
screen -e^Bb
or you can put in your ~/.... | How can I disable keybindings / keybind in GNU screen? |
1,362,151,169,000 |
I tried every solution from How to run Dropbox daemon in background? and nothing solves my problem:
Basically, I already installed dropbox on my Ubuntu 12.04LTS headless server. I got init.d setup but the problem is that right now I cannot restart the server (other users are using it actively).
So I am trying to start... |
thanks a lot for all your answers. Thanks to user Nixgrrrl's comment, I realize that it was because I was using ssh -X (the default on my system). As soon as I did normal ssh, trying the humble dropbox start & worked :)
| dropbox process stops when I log out of ssh |
1,362,151,169,000 |
I want to be able to SSH to a remote host and restore a screen session with one command. Both hosts use UTF-8 locale. My problem is that then, inside the screen session, characters are encoded twice.
As stated in other related questions, I need to pass the -t option to ssh command in order to allocate a pseudo-tty for... |
That suggests the screen that you're attaching your session to thinks your terminal is not in UTF-8.
It thinks for instance (if it assumes the charset is iso-8859-1 instead) that 0xc3 coming from the terminal device means a Ã.
The screen session, however is running in UTF-8 (screen is a terminal emulator that can be a... | Characters are encoded twice when I ask SSH to reattach a screen session on the remote host |
1,362,151,169,000 |
Suppose that I am running screen on a remote server with four open screens. Is there a quick way to cd all the screens to the working directory of the currently-open screen?
|
Here is a work-around: on one tab, record the CWD into a temp file, on the other tabs, cd to the just-saved dir. I would put these two aliases to my .bashrc or .bash_profile:
alias ds='pwd > /tmp/cwd'
alias dr='cd "$(</tmp/cwd)"'
the ds (dir save) command marks the CWD, and the dr (dir recall) command cd to it. You c... | `cd` all screens to the PWD of the current screen |
1,362,151,169,000 |
How do I disable the output when you are done with a screen from the screen command?
Example:
function foo()
{
echo "Testing..."
sleep 2
echo "Done!"
}
export -f foo
screen -q bash -c "foo" &> /dev/null
It all works as expected, however I cannot find out how to disable the "[screen is terminating]".
|
There are only two solutions that I can think of. The first is to modify the screen code itself and recompile. The second is to have something like an expect wrapper around the program (untested):
#!/usr/bin/expect -f
spawn screen -q bash -c foo
interact {
"\[screen is terminating]" exit
}
| Disable screen outputting "[screen is terminating]" |
1,362,151,169,000 |
In bash, when I type screen -x and press tab twice, I get a list of all the running sessions.
In zsh, when I type screen -ls and press tab twice, I get a list of all the running sessions and can tab through them, eventually select one when pressing enter, but this then executes screen -ls session-name when pressing en... |
The code is in _screen (completion is provided natively by zsh, it's not an additional plugin). Zsh completes all sessions for -ls but only attached sessions for -x.
-x is intended to “Attach to a not detached screen session” (per the manual). But it also works if the session is detached. So both behaviors make sense.... | zsh gnu-screen tab completion for `-x` flag similar to `-ls` |
1,362,151,169,000 |
I am trying to create a Docker container with screen session running some script.
Dockerfile contains
CMD screen -S session1 ./testLinux
When I run it in detached mode it closes immediately, saying
Must be connected to a terminal.
How do I run persistent screen session inside detached docker container?
|
I can reproduce this with this Dockerfile:
FROM centos:latest
RUN yum -y install screen && rm -rf /var/cache/yum
CMD screen -S session1 sleep 99999
when I run it with docker run <imageID> I get Must be connected to a terminal.
Screen needs a terminal (tty) to function. The solution is to add -tid to the run flags, fr... | Persistent screen session inside Docker container |
1,362,151,169,000 |
From https://unix.stackexchange.com/a/485290/674
Further down in the netstat output is UNIX sockets:
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags Type State I-Node PID/Program name Path
<snip>
unix 2 [ ACC ] STREAM LISTENING 21936 1/systemd ... |
screen processes don’t maintain socket connections while they’re running; they open and close socket connections as needed when they have messages to send. Thus, when you run screen -r to reconnect to an existing session, it connects to the existing process using a socket, negotiates various settings, and when it’s go... | Why doesn't `netstat` show Screen client but only Screen server process? |
1,362,151,169,000 |
I am trying to write the time in a screen in shell script, however, I am extremely inexperienced with the screen command. Thus, apologies for my mistakes.
I have a transmitter that operates in a screen created by the shell script I wrote, as follows:
screen -S trans -L /dev/ttyACM0
screen -S trans -X stuff 's'$(echo -... |
Sounds simple enough, let me know if I missed something.
At the end of that script, last line put:
date >> screenlog.0
entire script:
screen -S trans -L /dev/ttyACM0
screen -S trans -X stuff 's'$(echo -ne '\015')
sleep 8s
screen -S trans -X quit
date >> screenlog.0
| Writing to a screen in Shell Script |
1,362,151,169,000 |
I have created multiple screen to run the same piece of code with different parameters. The way I'm doing it right now is manually attaching one screen, pass the command and arguments and then Ctrl a+d to detach that screen. Then again attaching a different screen and again passing the arguments and detaching from tha... |
Creating multiple screen sessions is probably not the best option. Screen supports the notion of putting multiple windows within one session, which makes collections like that easier to handle. There's ^A 1, ^A 2 etc. ^A ' and ^A " to switch between the windows and ^A w to list them.
Going with one screen session, you... | Accessing back and forth screens through bash script |
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I am using screen within a deployment script to launch several processes detached.
For example :
/usr/bin/screen -dmSL ${USER}_selenuim java -jar selenium-server-standalone.jar -role hub -servlets com.example.local
The problem I see is that this service will be on for an extended duration and the output is quite ver... |
My version of screen opens the log file in append mode, so any writes are always at the end of the current size of the file.
This means you can independently reduce the size of the file, for example to 0, and the logs will continue from there. You can use the command
truncate --size 0 screenlog.0
to shrink the file ... | Multiple log files with screen |
1,362,151,169,000 |
I am currently running mathematica on a Linux cluster, I want the job running stably even if I log out. So I use nohup. However, I found sometimes nohup terminates without any sign (I can't see any error message in the output file, it just stopped in the middle of a calculation.)
It maybe due to Mathematica. But I thi... |
It will not make a real difference, in the sense that if you run screen (or tmux) and you disconnnect there will be NOHUP signal sent to your application whether you start it with nohup or not.
I suggest you try it out by using screen/tmux and just start the program without nohup. Then forecfully disconnect, login and... | Is there a difference between nohup and nohup in a screen? |
1,362,151,169,000 |
I have started a few processes in the past initiated via the screen command. Most of those scripts have already finished running, but looks like the screens are still sitting there idle. I can see them when I do a ps aux | less to see all processes.
How can I see all the screens and whether there is an active script ... |
To see the current list of running screens:
screen -list
The first part of the screen's name is its PID. To see the tree of currently running processes spawned from that parent process, run:
pstree <PID>
or, for a more detailed output,
pstree -a <PID> | less
To reattach to a screen (and detach it if it's already at... | Find all idle screens |
1,362,151,169,000 |
I am using the RemoteLoginAutoScreen script to start a screen session when I ssh into a host.
Differences from linked script: I am using zsh and the RemoteLoginAutoScreen uses bash
The problem that I'm running into is that my ssh connect was disconnected (which happens frequently and hence the auto-screen configuratio... |
You have two copies of screen. One of them stores its sessions in /tmp/uscreens and the other stores its sessions in /var/run/screen, so they don't see each other's sessions.
Even if you could force them to see each other's sessions there's a chance that the copies of screen are different versions and bad things would... | running screen in a shell can't find sessions but running screen during ssh login can |
1,362,151,169,000 |
Is there a way to take a "screenshot" of linux screen command. In other words can "screen -r" command to be called with the same behaviour as "top -b -n 1" - print contents once and exit.
Background - I have a screen process that's running on my server. I want to be able to show it's contents in web for example. Or ta... |
You can get a 'hardcopy' of a screen session with the screen command 'hardcopy' An automated way to do this would be something like:
rm ~/hardcopy.0
screen -X -p0 hardcopy
tail -30 ~/hardcopy.0
It was also pointed out 'screen -X -p0 hardcopy -h /tmp/out.txt' might be more useful. That version will copy the entire s... | Screenshot of a window in a detached or remote screen |
1,362,151,169,000 |
Our school HPC does not have a scheduler. So there is nothing like job queue. Hence, I cannot automate parallel job submission by qsub or sbatch.
What I have been using to "submit" a job is by using screen: type screen, then press Enter, then type ./runMyJob.sh, then press CTRL+a followed by d to detach.
Now I wish to... |
Don't think of it in terms of pressing keys, think of it in terms of accomplishing a task. Pressing keys is a way to do things interactively. The way to accomplish things automatically is to script them.
To start a job in screen and detach it immediately, run
screen -md ./runMyJob.sh
If you want to make your jobs eas... | Automate starting several parallel screen threads? |
1,362,151,169,000 |
I run a simple minecraft server.
I made a script awhile ago for Ubuntu that would automatically create a Gnu screen and start said server.
I decided get a new server with Debian instead. Now for some reason, the script will not work and I have no idea why!
sleep 5
screen -dmS mc
sleep 1
screen -p 0 -S mc -X stuff "cd ... |
Your script doesn't work because ^ introduces a control character sequence. The two-character ^A stuffs a Ctrl+A character, which bash interprets as the command to go to the beginning of the line. You need to use \^ instead.
screen -p 0 -S mc -X stuff 'cd /home/server/Desktop/ServerSoftware/Minecraft/modpacks\^Agraria... | Why does this script work on Ubuntu, and not Debian? |
1,362,151,169,000 |
Whenever I try to run screen under a Zsh shell that I compiled under my home directory, I get the following error:
> screen
Cannot exec '/my/path/to/zsh/bin/zsh'
The Z shell is perfectly functional, and I have verified that I can run screen if I invoke it using a system shell (e.g. csh). I usually get into zsh with: ... |
This is embarrassing: the value of of my $SHELL variable was not correct (it had a typo). I apologize - I will make sure I triple check these things before posting a question like this and wasting everyone's time. Thanks so much to all for your help.
| Screen: "Cannot exec /my/path/to/zsh" with local shell |
1,362,151,169,000 |
Possible Duplicate:
sending text input to a detached screen
With reference to the answered question:
Sending input to a screen session from outside
I am trying to write a script that will create a screen and then stuff input (in my case, UNIX commands) into the shell that I want it to execute.
Here's what I have ... |
When a screen session is first created, no window is selected. As such, when you send your commands, screen doesn't know which window to send it to. Once you have attached to the screen, however, the window has become selected, which is why you can send commands after doing so. To select a window from the command line... | Unable to 'stuff' commands into a created 'screen' immediately after creating it [duplicate] |
1,362,151,169,000 |
I just set up a systemd.service in order to run cmus (a console-music-player) detached to a screen at startup.
i don't get sound, when starting via remote with no user logged in to the machine.
i do get sound, while i'm logged in as the user i set the service to run. but: i can't change volume via remote, it says "mix... |
allright, after more searching and experimenting i found a solution, that works like a charme at least on this ubuntu: just add Group=audio. No environment needed.
[Unit]
Description=cmusd (consolemusicplayer in screen with remote-web-server)
After=syslog.target network.target sound.target
[Service]
Type=forking
User... | no alsa-sound in systemd-service (using screen) |
1,362,151,169,000 |
I am interested in having a single file open with vim in two shells at once. The use case I have in mind is two windows of gnu screen running on a tty.
The catch is that I would like the instances of vim to be coordinated in the sense that edits in one window manifest instantly in each window. I would also like differ... |
You should really differentiate between opening the file twice or just displaying it's contents twice.
Opened separately (in two shells / xterms) the coordination is via :e! etc. in vim, but it is not practical and not what you want.
If you just :sp in vim, you get a instant duplication; but this is not "two shells"... | Can you run vim (or another editor) in two shells at once on a single file, in a coordinated way? |
1,362,151,169,000 |
I've been using screen (v4.03.01) for a while now and really like it. I've heavily customized my .screenrc, however for some odd reason the layout commands don't take on launch. If I source ~/.screenrc, they do take and my layout changes to what I want. Of note might be that I start screen with a crontab @reboot as th... |
You found a bug. And a nasty one at that.
The layout family of commands appear to be dependent on a controlling terminal (a TTY or PTS must be present for the command to work). I can replicate the problem without going through crontab:
I append the following to my .screenrc:
layout new lay1
split -v
layout new lay2
... | screen layout operations in .screenrc not working |
1,362,151,169,000 |
I am inside a screen session, and from there want to launch another screen. However I don't want the new screen to be within the existing ( or a child process of the existing ).
I.e. if I simply start screen from the existing screen I get a process tree like this:
├── screen 1
│ └── screen 2
but I want:
├── screen... |
From the manpage, the -m option is what you want
-m causes screen to ignore the $STY environment variable. With
"screen -m" creation of a new session is enforced, regardless
whether screen is called from within another screen session or
not.
So
$ screen -m
should do what... | Launch top level screen from inside screen |
1,362,151,169,000 |
Commonly I'm working with a single screen with many windowlist in it.
ex:
$ screen -r work
[ctrl]+[A] , ["]
Num Name Flags
0 root ... |
If you want to recreate all the windows you can put in your ~/.screenrc lines with the name, number and command, eg:
screen -t root 0 bash
screen -t bash 1 bash
screen -t alpha 3 bash
or you can run from the command line the equivalent commands eg:
$ screen -S work -X screen -t samsung 6 bash
If you want to name o... | screen list presettings |
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I was wondering if there was a program like GNU/screen or tmux that would allow me to attach or detach a session with a running process but would not provide all of the other features such as windows and panes. Ideally the program would be able to run in a dumb terminal (a terminal without clear).
My use case is to u... |
dtach is a wafer-thin terminal session manager, now forked on github, or doubtless easily installed via the ports or package system for your operating system.
(Of historical interest may also be the dislocate example script distributed with expect.)
| Is there a program like tmux or screen but only for attaching or detaching a session |
1,459,528,977,000 |
Consider the following script:
#!/bin/bash
OFILE='log'
echo 'ok' > ${OFILE}
kill -SIGSTOP $$
echo 'after stop' > ${OFILE}
In an interactive shell the script is stopped and the output is ok. However, if it is started as
screen -d -m ./test.sh
the output is after stop. Does screen handle the signal? How to suspend a p... |
Examination of the source code of GNU screen-4.0.2 showed that screen checks if its child processes are stopped and then tries to resume them with SIGCONT. Here is a relevant part of the screen.c:
1561 if (WIFSTOPPED(wstat))
1562 {
1563 debug3("Window %d pid %d: WIFSTOPPED (sig %d)\n", p->w_number, p->w_pid, ... | Why doesn't SIGSTOP work inside screen session? |
1,459,528,977,000 |
In my usual setup, I use use matlab-emacs to run Matlab through the Emacs GUI. I run Matlab and emacs on a Linux server, and use ssh and X forwarding so this all shows up on my local Ubuntu laptop.
I would like to further complicate this setup by running emacs in screen. This mostly works with the notable exception t... |
Terminals transmit characters¹, not keys. When you press a key or key combination like Ctrl+Alt+Enter, the terminal has to translate it to a character or character sequence. There aren't nearly enough characters to represent all keys, so most such combinations are transmitted as escape sequences: a sequence of charact... | I cannot use the keyboard shortcut <ctrl>+<alt>+<enter> in matlab running in emacs running in screen |
1,459,528,977,000 |
Though I have the feeling the answer might be already out there, after reading several questions I did not manage to solve my problem. Apologies in advance in case of duplication.
Current Situation: I have 1 screen detached I cannot manage to take control of:
There is a screen on:
9667.pts-11.compute-2-1 (Det... |
If you just want to get rid of this screen session , you can do:
kill 9667; screen -wipe
| Linux screen: Clearing Screen List |
1,459,528,977,000 |
I'm kind of new to bash scripting and I'm having trouble figuring out how to accomplish this.
I'm working on a script that is designed to backup and manage a java application that runs within a screen session. The goal is to be able to have multiple instances of the java application running on the different machines ... |
How about:
ssh user@host -t screen -r
| Bash Script Display Remote Screen Session to User |
1,459,528,977,000 |
I have a script 'myscript.sh', that calls a vendor script 'vendorscript.sh'. The vendor script runs screen in the foreground.
I would like to run the vendor script with screen detached. If possible I would like to do this without hacking the vendorscript.sh or vendor_screenrc.
Is there a way to do this?
myscript.sh:... |
If vendorscript.sh does not use an absolute path to launch the screen program, you could try manipulating the $PATH prior to execution. This also assumes that the $PATH is not reset/manipulated within vendorscript.sh.
For example, I've created a directory /opt/vendor and created a shell script in it called screen:
#!/... | script that calls a third party script that calls screen - how to start screen detached? |
1,459,528,977,000 |
I've been trying to port my Windows .vimrc to Linux, to use on the command line (on gnome-terminal). Everything works fine, except for the colorscheme. It looks like it's loaded (:colorscheme returns solarized; :set t_Co returns t_Co=256 and :set background returns background=light), but it looks ugly on my terminal. ... |
I'm hazarding a guess that given the number of plugins you have related to colors that one is interfering. I'd comment these out and see if that resolves the issue:
" Bundle 'altercation/vim-colors-solarized'
" Bundle 'spf13/vim-colors'
" Bundle 'gorodinskiy/vim-coloresque'
" Bundle 'flazz/vim-colorschemes'
" Bundle '... | vim colors not automatically loaded (probable Vundle conflict) |
1,459,528,977,000 |
I'm trying to run a command using screen which contains the dollar sign, but the dollar sign does not get through.
screen -d -m echo \$ > test.txt
test.txt just ends up being an empty file...
|
You're redirecting the output of screen. That's why test.txt is empty.
In fact, the $ is passed as an argument to echo. The shell you're calling screen from sees \$, resulting in the one-character string $ being an argument of echo. Screen runs echo which displays a $ in the screen window. Immediately after that, the ... | Screen escape dollar sign |
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I am working on a collectd plugin to monitor a program I have running in a detached screen session. This program constantly updates the terminal with its status by replacing its old status (similar to programs like top, etc).
I would like to be able to grab what it is currently "showing" and parse it to get the curr... |
That'd be the hardcopy command.
screen -x yoursession -X hardcopy /path/to/your/file
Would cap what the terminal is currently showing, without backlog, to the given file.
| Grab text from detached screen [duplicate] |
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After I reattach screen session :
screen -DR already_attached_session
My previous terminal is broken with broken bash:
[remote power detached]
Warning: Program '/bin/bash' crashed.
I can not recover it with Ctrl+C, Ctrl+Z, Ctrl+D.
Any idea what goes wrong and how can I avoid it ? (reattach properly)
|
Try using the lowercase -d option instead of -D. The -D option is forceful.
| After screen Reattaching, previous bash broken |
1,459,528,977,000 |
Possible Duplicate:
How can I disown it a running process and associate it to a new screen shell?
I started a process from one ssh session to a target machine T. The system from which I ssh'ed, A, hung. I checked using ssh from another machine, B that the process is still running on T. Now I want to be able to re... |
You could try to send a SIGCONT signal to the process, but as rozcietrzewiacz mentions, you may need to do some trickery with file descriptors if the process requires terminal access.
kill -CONT pid
If this still comes up as T, then it likely needs user input.
| Is it possible to detach a process started from one ssh session using another ssh session? [duplicate] |
1,459,528,977,000 |
When I execute the command screen -S myscreen -X stuff $'search add $1 \015' from a shell it works perfectly. If I put it in a .sh file and run it as sh /test.sh variablehere it sends it to screen as $'search add variablehere'.
Why would it normally work but not from sh? Im on Ubuntu Server if it matters.
|
The expression $'search add $1 \015', and in general the quoting $'string' is a bash features (probably also of other shells), so it works from command line, where you probably are using bash.
It for sure do not work for sh, that in ubuntu points to dash.
So the simple solution is to invoke your script with bash ./te... | Return Carriage not working (Screen) |
1,459,528,977,000 |
In gnu screen I can set the window title using Ctrl-a Shift-a <name>. When I am inside bash prompt I can determine whether I am inside screen by checking the variable $STY. Can I check some variable and determine the name of the currently open window?
|
There's not a variable for the current window title, but $WINDOW has the window number which I believe can be used in any command that takes the title.
If you just want to see the window title, then C-a N (Ctrl+a,N) will show the current window number and (title) in the message line (typically appears in the bottom le... | How to get the current window name in bash inside screen |
1,459,528,977,000 |
On Linux the DPI (dot per inch) is set to 96 per default, it can be changed globally on the X start up parameter for instance X -dpi 120
This seem to mainly impact text/font scaling. In comparison when screen resolution (ex 1920x1080) is changed this impact everything (window/text/image/etc).
Is DPI meant only for tex... |
DPI
DPI stand for dots per inch and is a measure of spatial printing/display, in particular the number of individual dots that can be placed in a line within the span of 1 inch (2.54 cm). Computer's screens do not have dots, but do have pixels, the closely related concept is pixels per inch or PPI and thus DPI is impl... | Is X DPI (dot per inch) setting just meant for text scaling? |
1,459,528,977,000 |
I can login to the server terminal with username and password. But I can't run the screen command. It says Must be connected to a terminal while I ran this screen -R newNodeServer.
I found an answer at Ask Ubuntu: What does the script /dev/null do?, but if I run the command script /dev/null according to that answer,... |
My best guess here is:
@testteam is trying to run screen command and getting screen complaining about not being able to open terminal.
In the answer linked, solution mentioned is to use script /dev/null and that should resolve the issue.
@testteam is wondering if that's going to affect any servers running on the mach... | Will the command `script /dev/null` stop or affect the running applications and server? [duplicate] |
1,459,528,977,000 |
I'm writing a script that spawns a screen process but depends on some pre-conditions I intend to perform before attaching to it.
I noticed that when started in detached mode it does not recognize the $TERM, but I do not want to hardcode it on .screenrc, and I did not find anyone with the same problem.
Here's my enviro... |
I think this is what you are (were) looking for:
screen -dmS foo -T "screen.$TERM"
I'm not sure if this solution is entirely general, but it should work fine as long as the parent-scope $TERM is properly set.
| How to fix gnu screen term detection when started on detached mode? |
1,459,528,977,000 |
So I have an automatic backup script hourly backing up important files of the server.
It has many lines like this that send input to the screen session the game server console is running in to broadcast when it starts to backup the files:
screen -x $SCREENNAME -X stuff "`printf "say Backing up world: \'$WORLD\'\r"`
... |
You can preselect a window by specifying -p , 0 is first window, 1 is second so on...
screen -x $SCREENNAME -p 0 -X stuff "printf "say Backing up world: \'$WORLD\'\r""
| Directing input made to a screen session with a command to a specific window inside the session? |
1,459,528,977,000 |
When running Screen, I can use Ctrl+ac to create a new window and run vim in each window. Also from Screen, I can run the command screen vim multiple times to open new windows with vim already running. These work as expected. However...
If I put the command multiple times in a script, such as:
#!/bin/bash
screen vim
s... |
I believe I found that the problem is caused by the script running all commands (except the first) in the background. I can force the first command to have the same problem by forking it with &.
After not being able to find a way to have the script run each command in the foreground, one-after-the-other, I have found ... | Starting multiple Screen windows from shell script uses wrong configuration |
1,459,528,977,000 |
Is there a single command for screen to completely close/quit all running programs in detached mode?
I hope to do this in a bash script without any further input.
|
You can use screen -X to send a command to a running screen, so screen -X quit should ask the session to terminate and kill all of its windows.
If you have multiple screens running, use -S to identify them.
| Bash command to close all detached running programs by GNU screen? |
1,459,528,977,000 |
#!/bin/bash
set -o nounset
set -o errexit
trap 'echo "Aborting due to errexit on line $LINENO. Exit code: $?" >&2' ERR
set -o errtrace
set -o pipefail
SCR="bunny"
SCRIPT="/home/../run.sh"
main() {
if find_screen $SCR >/dev/null; then
close_screen
start_script
fi
}
function start_script {... |
I got this to work with a few modifications:
#!/bin/bash
set -o nounset
# set -o errexit
# trap 'echo "Aborting due to errexit on line $LINENO. Exit code: $?" >&2' ERR
set -o errtrace
set -o pipefail
SCR="bunny"
SCRIPT="/home/../run.sh"
function main() {
if find_screen $SCR >/dev/null; then
close_scre... | Close and restart screen - ends up being duped! |
1,459,528,977,000 |
One useful feature of Emacs is the ability to save the layout of the current frame to a register C-x r f <letter> and restore it later C-x r j <letter>.
In screen it can be a little tedious trying to reconstruct a layout after closing all but one buffer with C-a Q or something similar. From what I can gather screen do... |
No - the only files which screen writes are enumerated in screen.h:
#define DUMP_TERMCAP 0 /* WriteFile() options */
#define DUMP_HARDCOPY 1
#define DUMP_EXCHANGE 2
#define DUMP_SCROLLBACK 3
and those are documented in the manual page (none are the layout as such).
| GNU screen mimic emacs frameset-to-register by writing layout to file |
1,459,528,977,000 |
When the width of the currently focused pane (in the tmux sense) is too narrow to display the confirmation message Really quit and kill all your windows [y/n], Screen displays Width x chars too small and doesn't accept y or n. Is there a way to get it to either display a truncated y/n message or disable the confirmati... |
There's not much to work with, without modifying screen. The latter message comes from Input, and simply returns without providing a status code (see source):
if (len < 0)
{
LMsg(0, "Width %d chars too small", -len);
return;
}
Interestingly, that section was rewritten last year, removing the te... | GNU screen prevent "Width x chars too small" message on exit ("C-a C-\") |
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