HALT(8)

NAME
halt, poweroff, reboot - Halt, power-off or reboot the machine

SYNOPSIS

halt [OPTIONS...]

poweroff [OPTIONS...]

reboot [OPTIONS...]

DESCRIPTION

halt, poweroff, reboot may be used to halt, power-off or reboot the machine.

OPTIONS

The following options are understood:

--help
    Print a short help text and exit.

--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. If specified, the command does not contact the init system. In most cases, filesystems are not properly unmounted before shutdown. For example, the command reboot -f is mostly equivalent to systemctl reboot -ff, instead of systemctl reboot -f.

-w, --wtmp-only
    Only write wtmp shutdown entry, do not actually halt, power-off, reboot.

-d, --no-wtmp
    Do not write wtmp shutdown entry.

-n, --no-sync
    Don't sync hard disks/storage media before halt, power-off, reboot.

--no-wall
    Do not send wall message before halt, power-off, reboot.

EXIT STATUS

On success, 0 is returned, a non-zero failure code otherwise.

NOTES

These commands are implemented in a way that preserves compatibility with the original SysV commands. systemctl(1) verbs halt, poweroff, reboot provide the same functionality with some additional features.

SEE ALSO

systemd(1), systemctl(1), shutdown(8), wall(1)