jobs
jobs | fg [%N] | bg [%N] | <command> &
Risk: Safe
What it does
Lists the programs this terminal started in the background.
When to use it
To juggle long tasks while you keep typing.
Example
$ sleep 300 &Start a long job in the background.
$ jobsList them.
$ fg %1Bring job 1 to the front.
$ bgLet a paused job (Ctrl+Z) run on in the back.
Learn it in: Signals, kill and jobs · Official docs