Here's something cool you can do with screen. Share a screen session with multiple terminals. "screen -x". Of course, this only works if you're using the same user.
Let's say you want to do some cooperative debugging with another username. Simple:
1. Set screen setuid flag:
chmod +s screen
2. Start a new screen sessions:
screen -S mihai
3. Set multiuser
Ctrl-A
:multiuser on
4. Add the user to join your session to the ACL list:
Ctrl-A
:acladd jimbo
5. Now connect as jimbo and join cmihai's session (called mihai):
screen -x cmihai/mihai
Now you can share you screen session with that user :-).
3 comments:
Oops. I think you mean screen -x in that last command.
This is truly an invaluable function of screen that I've come to use over the years.
Oops indeed. I was thinking screen but my fingers got there first and typed ssh :-).
Yup. Awesome stuff. You can even add restricted permissions (r,w,x) with aclchg. Multiuser mode rocks!
I've been using http://www.sun.com/service/sharedshell/ on public machines for a while now (similar concept, but kind of buggy), but if screen is available, it's much nicer.
I like shared shell too, but with screen, the other participant(s) aren't required to have sunsolve accounts.
So I try to reserve shared shell for vendor support while using screen internally amongst my peers.
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