< User:Johannbg | QA/Systemd
Name
shutdown — Halt, power-off or reboot the machine
Synopsis
shutdown [OPTIONS...] [now] [WALL...]
Description
shutdown may be used to halt, power-off or reboot the machine.
The first argument should be the string now which however is ignored by this implementation. Optionally, this may be followed by a wall message to be sent to all logged-in users before going down.
Options
The following options are understood:
--help
Prints a short help text and exits.
-H, --halt
Halt the machine.
-P, --poweroff
Power-off the machine (the default).
-r, --reboot
Reboot the machine.
-h
Equivalent to --poweroff, unless --halt is specified.
-k
Don't halt, power-off, reboot, just write wall message.
--no-wall
Don't send wall message before halt, power-off, reboot.
Exit status
On success 0 is returned, a non-zero failure code otherwise.
Notes
This is a legacy command available for compatibility only.
See Also
systemd(1), systemctl(1), halt(8), wall(1)