poweroff(8) on Linux
The text b10324b49f3c, as Debian 12 (Bookworm) shipped it.
Halt, power-off or reboot the machine
Flags it lists
-
--force -
--halt -
--help -
--no-sync -
--no-wall -
--no-wtmp -
--poweroff -
--reboot -
--wtmp-only -
-d -
-f -
-n -
-p -
-w