At work we have a pretty powerful server on which we run computationally intensive programs. Many times, I want the programs I execute to continue running after I log off. This is how to do it:
screen -S blah run_my_command Ctrl+a d
I can now log off and go home. The program will continue executing safely.
The following day, I log back to the server and type:
screen -r blah
I’m now back where I was.