halt, poweroff, reboot — Halt, power-off or reboot the machine
halt [OPTIONS...]
poweroff [OPTIONS...]
reboot [OPTIONS...]
The following options are understood:
--help¶Prints a short help text and exits.
--halt¶Halt the machine, regardless of which one of the three commands is invoked.
-p, --poweroff¶Power-off the machine, regardless of which one of the three commands is invoked.
--reboot¶Reboot the machine, regardless of which one of the three commands is invoked.
-f, --force¶Force immediate halt, power-off, reboot. Don't contact the init system.
-w, --wtmp-only¶Only write wtmp shutdown entry, don't actually halt, power-off, reboot.
-d, --no-wtmp¶Don't write wtmp shutdown entry.
--no-wall¶Don't send wall message before halt, power-off, reboot.