I know how to start a screen, and how to list different screens:

screen -ls

or to attach:

There are screens on:
        2477.pts-0.server1      (Detached)
        2522.pts-0.server1      (Detached)
2 Sockets in /var/run/screen/S-root.

$ screen -r 2477.pts-0.server1

But what is the key combination to detach from a screen session and keep it running?


Ctrl+a followed by d. Note the lower case. The [screen manpage] has a long list of these shortcuts under "DEFAULT KEY BINDINGS".

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  • 14
    I think that you mean <kbd>Ctrl-A<kbd> <kbd>d</kbd> (lowercase). The upper case (D) is 'powerdetach'. – Arcege Apr 25 '12 at 0:23
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    yes, as @Arcege proposes, <Ctrl-A> <d> detaches from current screen session. Which worked for me. <Ctrl-A> <D> seemed to wait something else and received "detach aborted" message as soon as I pressed any other Key. If <Ctrl-A> <D><D> pressed you're detached and logout from ssh. – theme Jul 7 '17 at 10:51

To list your sessions, run:

screen -list

You can run any command under screen command like:

screen myscript.sh

Then press Ctrl+a (release) and then d to detach the process/screen (so it'll continue to run).

To resume detached process, use:

screen -r

If you have multiple, then add the session number after that.

You can also re-attach to already Attached screen by screen -x. Useful to investigate why it's attached, share terminal with someone or to watch/check somebody what they're doing.

For more help, either run man screen or within the screen press Ctrl+a, release and then hit ? to see more shortcuts.

See also:

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You'll probably see it listed like this in the screen man page:

^a - d

It's important the note the case of the letters as uppercase and lowercase will do different functions.

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Some systems remove certain bindings by default. So it is best to look at the online keybinding page: Ctrl-a ?. You can also use the command prompt in screen: Ctrl-a :detach. Myself, I generally remove the key bindings for 'detach' and 'powerdetach', except on remote systems.

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