pmset

  Configure macOS power management settings, as one might do in System Preferences > Energy Saver.
  Commands that modify settings must begin with sudo.

  - Display the current power management settings:
    pmset -g

  - Display the current power source and battery levels:
    pmset -g batt

  - Set display to never sleep when on charger power:
    sudo pmset -c displaysleep 0

  - Set display to sleep after 15 minutes when on battery power:
    sudo pmset -b displaysleep 15

  - Schedule computer to automatically wake up every weekday at 9 AM:
    sudo pmset repeat wake MTWRF 09:00:00

  - Restore to system defaults:
    sudo pmset -a displaysleep 10 disksleep 10 sleep 30 womp 1


See also: sudo