caffeinate

Prevent macOS from sleeping. More information: https://keith.github.io/xcode-man-pages/caffeinate.8.html.

Prevent from sleeping for 1 hour (3600 seconds):

caffeinate -u -t {{3600}}

Prevent from sleeping until a command completes:

caffeinate -s "{{command}}"

Prevent from sleeping until a process with the specified PID completes:

caffeinate -w {{pid}}

Prevent from sleeping (use Ctrl + C to exit):

caffeinate -i

Prevent disk from sleeping (use Ctrl + C to exit):

caffeinate -m