screen -S <your_session_name>

Do not start screen, but instead print a list of session identification strings. Sessions marked “detached” can be resumed with screen -r. Those marked “attached” are running and have a controlling terminal.

screen -ls

If your remote connection crashed while you had an open screen session you have to detach it before you can reconnect. You do it this way:

Reattach a session and if necessary detach it first.

screen -d -r <session_name>

To rename a session do:

1. Attach to the session in question
2. Press ctrl+ a
3. Type :sessionname <your_session_name> – yes, the first colon is needed there, no extra spaces
4. Type enter