Screen Command

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The ‘screen’ command allows you to start a session on a remote computer and have it persist even if you log out. This is very useful if you’re running a long program so that you don’t have to stay logged in for that full duration.

To attach to an existing screen, do ‘screen -r’. This will return you to an existing session.

While you’re attached to a screen, all screen commands begin with ‘Ctrl-a’. To detach a session, type ‘Ctrl-a d’.

To list the existing screens and whether you are attached to one, run ‘screen -ls’.