Keeping programs/scripts running after logoff

Leading up to getting our scripts to run as daemons, we need to know how to keep commands running after a user logs off (or better yet, have them started by the system itself (we will look at this in more detail later). When a user logs in, a session for that user is created, but when they log off—unless the system owns it, processes and scripts typically get killed or closed.

This recipe is about keeping your scripts and activities running in the background after you log off.

Getting ready

Besides having a terminal open, we need to remember a few concepts:

• When a user logs off, any apps or processes owned by the current user will exit (the shell will send a signal)
• The...