Linux Screen Cheatsheet

To create a screen

screen

List all the detached (running) screens with their screen IDs.

screen -list

Connect / Attach to a specific running screen.

screen -x [screen id]

While in a screen to Terminate / Stop a screen from running.

Ctrl + D

While in a screen to detach from screen without disturbing it.

Ctrl + A, Then press D

Detach or terminate all screens.

killall screen

See current screen sessions:

$ screen -ls

There are screens on:

4964.myprogramrunningunderscreen (05/31/2013 09:42:29 PM) (Detached)
4874.pts-1.creeper (05/31/2013 09:39:12 PM) (Detached)
2 Sockets in /var/run/screen/S-paul.

As a bonus, you can use an unambiguous abbreviation of the name you pass to -S later to reconnect:

screen -r myprog

or if that fails you can use additional switch-

screen -d -r myprog