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Automatically find and re-attach to a detached screen session

Terminal - Automatically find and re-attach to a detached screen session
screen -D -R
2012-03-01 15:28:21
User: marek158
Functions: screen
Automatically find and re-attach to a detached screen session

man screen:

"-D -R Attach here and now. In detail this means: If a session is running, then reattach. If necessary detach and logout remotely first. If it was not running create it and notify the user. This is the author?s favorite."


There are 2 alternatives - vote for the best!

Terminal - Alternatives
screen -RR
2012-03-01 15:27:44
User: jlaunay
Functions: screen
Tags: gnu screen

-RR option is used to resume the first appropriate detached screen session

screen -x `screen -ls | grep Detached | cut -c -10`
2012-03-01 14:13:09
User: peter4512
Functions: cut grep screen
Tags: gnu screen

I alias this as "tach":

alias tach='screen -x `screen -ls | grep Detached | cut -c -10`'

If you have several detached sessions it will just grab the first one. If you're running nested screens you can open new outer windows and run tach repeatedly to grab all the detached sessions into that one.

Know a better way?

If you can do better, submit your command here.

What others think

what if there are more than 1 screen sessions? do you have to specify the session name?

Comment by unixoid 187 weeks and 5 days ago

Your point of view

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