Stop all screens linux

The uscreens directory will not have the 26727.pts-0.devxxx file in it anymore. Now to make sure just type this:

No Sockets found in /tmp/uscreens/S-xxx.

This is the only solution that will work if the screen is "stuck", ie. not dead, but cannot be attached to.

This helped me when the screen was utterly locked, but I did need to find and kill the actual process as well. ps aux | grep screen found the pid and I issued a kill to remove it. Depending on what you had running in your screen, you may have temp files and locks to clean up as well.

Should clean all dead screen sessions.

@ShihaoXu Dead means the session is unreachable and on localhost (socket connection is broken). - see gnu.org/software/screen/manual/screen.html

alias cleanscreen="screen -ls | tail -n +2 | head -n -2 | awk ''| xargs -I<> screen -S <> -X quit" 

Then use cleanscreen to clean all screen session.

A simple one-liner: screen -ls | grep Detached | cut -d. -f1 | awk '' | xargs kill

Worked a treat, but had to modify it slightly to work on OSX: screen -ls | tail +2 | head -2 | awk ''| xargs -I<> screen -S <> -X quit

Slight improvement:-screen -ls | grep Attached | cut -d. -f1 | awk '' | xargs -I<> screen -d <>

works. This is from within the screen session.

To kill all detached screen sessions, include this function in your .bash_profile:

killd () < for session in $(screen -ls | grep -o '6\') do screen -S "$" -X quit; done > 

== ISSUE THIS COMMAND [xxx@devxxx ~]$ screen -ls == SCREEN RESPONDS There are screens on: 23487.pts-0.devxxx (Detached) 26727.pts-0.devxxx (Attached) 2 Sockets in /tmp/uscreens/S-xxx. == NOW KILL THE ONE YOU DONT WANT [xxx@devxxx ~]$ screen -X -S 23487.pts-0.devxxx kill == WANT PROOF? [xxx@devxxx ~]$ screen -ls There is a screen on: 26727.pts-0.devxxx (Attached) 1 Socket in /tmp/uscreens/S-xxx. 

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How to stop a screen process in linux?

I am running a script on a remote server. I ran the script in screen , however I need to stop it before it completes since I need to update the script. I can easily detach from screen , however, is there a way to kill a screen process?

Do you really want to kill screen(1) ? Or would you rather kill the process you started inside screen(1) ?

5 Answers 5

CTRL+a and then 'k' will kill a screen session.

Thank you! I just added a Terminal Hotkey that goes "\001ky" (Ctrl-A, k and y for "yes"). On a far note, I have a hotkey bound to the "Home" key that goes "cd ~/ Enter" 😆 There’s no place like cd ~/

There are a couple of 'screen' ways to kill a specific screen session from the command line (non-interactively).

screen -X -S "sessionname" quit 

2) send a Ctrl-C to a screen session running a script:

screen -X -S "sessionname" stuff "^C" 

In both cases, you would need to use 'screen -ls' to find the session name of the screen session you want to kill . if there is only one screen session running, you won't need to specify the -S "sessionname" parameter.

I used this to quit hundreds of erroneous screen sessions created by a buggy command:

for s in $(screen -ls|grep -o -P "1\d+.tty"); do screen -X -S $s quit; done;

where: the grep -o -P "1\d+.tty" is the command to get session names with Perl-like name regex "1\d+.tty" which captures all sessions start with number 1 , has some other numbers ( \d ) and end with .tty

Warning: You should test with this command first to see you get the exact list of sessions you want before apply the above command. This is to avoid quitting unwanted sessions:

for s in $(screen -ls|grep -o -P "1\d+.tty"); do echo $s; done;

I always to this echo test whenever the list in for loop is not clear, for example, the one generated by sub-command in $() expansion.

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How Do I Close a Screen Session?

Sometimes we execute multiple screen sessions in GNU Screen which necessitates cleanup. In this short guide, we will walk you through the options of closing a screen session but firstly, let’s understand some essential information about the screen.

What is a Screen?

A terminal multiplexer is referred to as screen. Multiple interactive shells of the physical terminal are multiplexed by the screen. It permits the user to perform several tasks running in each terminal. All of these independent screen sessions execute their programs. If you accidentally closed or get disconnected from any screen session, that process will run within the screen session.

For example, when upgrading an Ubuntu server via SSH, if your SSH session is terminated for any reason, the screen command will continue the upgrade process undoubtedly.

Here, we have provided you a list of important keyboard shortcuts for managing various nested sessions.

Now, we will demonstrate to you the complete procedure of closing an existing screen session. Before starting this, check out the below-given method for setting up some screen session.

Setting-up Screen Sessions

As a result of the command execution, two sessions will be initialized named “my_session_1”, and “my_session_2”.

Now, list out all screen sessions by writing out the following command:

Here, the output will also give you information about the existing screen session, other than the newly created one.

One method of ending a session is to attach it first and then end it. We will follow this method in the upcoming section. We took “my_session_1” as an example, you can choose the session which you want to end.

Utilize the following command for checking related information about the “my_session_1” screen session.

Closing a Screen Session

Note the complete id of the screen session. After that, attach this screen session using the “-r” option in the screen command.

In your terminal, type “exit” to exit this screen session.

As you can see, the output declares that the process is terminated successfully.

Another method of ending a screen session is to press “CTRL+a” combined with the “\” key while a session is attached.

Conclusion

The screen multiplexes numerous interactive shells of the physical terminal. It also allows its user to execute multiple tasks in each terminal simultaneously. There comes a case where cleanup is required and for that, you want to end a screen session. In this post, we have discussed two distinct methods for ending a screen session.

About the author

Talha Saif Malik

Talha is a contributor at Linux Hint with a vision to bring value and do useful things for the world. He loves to read, write and speak about Linux, Data, Computers and Technology.

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Kill Attached Screen in Linux

I created a screen "myscreen" in linux and it stopped responding abruptly. I closed the terminal and tried to reopen it. "screen -ls" shows that the screen is Attached. I tried the following commands but nothing responds.

screen -r myscreen screen -D myscreen screen -D -RR myscreen screen -X -S myscreen quit 

I am not sure if screen is a process. But "kill -9" will kill the entire process. But i want to kill the particular screen and leave the other screens uninterrupted.

11 Answers 11

alternatively, you can use the following command

screen -S SCREENNAME -p 0 -X quit 

You can view the list of the screen sessions by executing screen -ls

I notice the first command sequence only kills the last window if you have multiple windows open while the second actually kills the entire screen regardless of the number of windows.

Create screen from Terminal:

To go to particular screen:

give ctrl+d screen will get terminated 

 give or screen will get detached 

To kill a screen from Terminal:

You can use screen_name or process_id to execute commands.

This worked for me very well. Get the screen id via:

then kill the screen: kill -9 it now becomes a dead screen, then wipe it out with: screen -wipe

Reattach a session and if necessary detach it first

To kill a detached screen use this from the terminal:

screen -X -S "SCEEN_NAME" quit 

If you are attached, then use (from the terminal and inside the screen):

You could create a function to kill all existing sessions. take a look at Kill all detached screen sessions

to list all active sessions use screen -r

when listed, select with your mouse the session you are interested in and paste it. like this

Suppose your screen id has a pattern. Then you can use the following code to kill all the attached screen at once.

result=$(screen -ls | grep 'pattern_of_screen_id' -o) for i in $result; do `screen -X -S $i quit`; done 

i usually don't name my screen instances, so this might not be useful, but did you try screen -r without the 'myscreen' part? usually for me, screen -r will show the PIDs of each screen then i can reattach with screen -d -r

Yes, that was the first command I tried. but it didn't respond. I tried to open as root user but the screen was not even detected for root user account.

You can find the process id of the attached running screen. I found it same as the session id which you can get by command:
screen -ls
And you can use following command to kill that process:
kill [sessionId] or
sudo kill [sessionId]

None of the screen commands were killing or reattaching the screen for me. Any screen command would just hang. I found another approach.

Each running screen has a file associated with it in:

The files in that folder will match the names of the screens when running the screen -list . If you delete the file, it kills the associated running screen (detached or attached).

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