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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXIT STATUS | NOTES | SEE ALSO | COLOPHON |
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HALT(8) halt HALT(8)
halt, poweroff, reboot - Halt, power-off or reboot the machine
halt [OPTIONS...]
poweroff [OPTIONS...]
reboot [OPTIONS...]
halt, poweroff, reboot may be used to halt, power-off, or reboot
the machine. All three commands take the same 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, or reboot. When specified
once, this results in an immediate but clean shutdown by the
system manager. When specified twice, this results in an
immediate shutdown without contacting the system manager. See
the description of --force in systemctl(1) for more details.
-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.
On success, 0 is returned, a non-zero failure code otherwise.
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.
systemd(1), systemctl(1), shutdown(8), wall(1)
This page is part of the systemd (systemd system and service
manager) project. Information about the project can be found at
⟨http://www.freedesktop.org/wiki/Software/systemd⟩. If you have
a bug report for this manual page, see
⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩.
This page was obtained from the project's upstream Git repository
⟨https://github.com/systemd/systemd.git⟩ on 2021-08-27. (At that
time, the date of the most recent commit that was found in the
repository was 2021-08-27.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
systemd 249 HALT(8)
Pages that refer to this page: reboot(2), fsck.minix(8), mkfs.minix(8), shutdown(8)
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