Unix Background Jobs
You can execute a command in the background by putting an ampersand at the end of the line:
$ sleep 60 &
[1] 10075
Running
See the currently running jobs with jobs:
$ jobs
[1]+ Running sleep 60 &
Foreground the most recent job with fg, or foreground that specific job with fg %1:
$ fg %1
sleep 60
You can also pause/stop currently running commands with Ctrl-Z:
^Z
[1]+ Stopped sleep 60
And then tell that command to continue running in the background with bg:
$ bg
[1]+ sleep 60 &
Learned from @sethvargo and @ivey.