To create screen
screen -S <screen_name>
To detach screen
Ctrl+A d
To list screens
screen -ls
To reattch screen
screen -r <screen_name>
To detach screen already attached in some other [SSH] session
screen -d <screen_name>
To kill a screen session
screen -X -S <screen_name>; or screen -X -S <screen_name> quit
To switch to a screen
screen -r <screen_name>
Note: <screen_name> can be screenName or screenId as you get from "screen -ls" command