halt

systemd
halt 8
halt poweroff reboot Halt, power-off or reboot the machine
`halt` OPTIONS `poweroff` OPTIONS `reboot` OPTIONS

## Description

`halt`, `poweroff`, `reboot` may be used to halt, power-off, or reboot the machine. All three commands take the same options.

## Options

The following options are understood:

`--help`
`--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. Do not contact the init system.

`-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 basic compatibility with the original SysV commands. systemctl 1 verbs `halt`, `poweroff`, `reboot` provide the same functionality with some additional features.

Note that on many SysV systems `halt` used to be synonymous to `poweroff`, i.e. both commands would equally result in powering the machine off. systemd is more accurate here, and `halt` results in halting the machine only (leaving power on), and `poweroff` is required to actually power it off.

## See Also

systemd 1, systemctl 1, shutdown 8, wall 1