'\" t .TH "HALT" "8" "" "systemd 241" "halt" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" halt, poweroff, reboot \- Halt, power\-off or reboot the machine .SH "SYNOPSIS" .HP \w'\fBhalt\fR\ 'u \fBhalt\fR [OPTIONS...] .HP \w'\fBpoweroff\fR\ 'u \fBpoweroff\fR [OPTIONS...] .HP \w'\fBreboot\fR\ 'u \fBreboot\fR [OPTIONS...] .SH "DESCRIPTION" .PP \fBhalt\fR, \fBpoweroff\fR, \fBreboot\fR may be used to halt, power\-off or reboot the machine\&. .SH "OPTIONS" .PP The following options are understood: .PP \fB\-\-help\fR .RS 4 Print a short help text and exit\&. .RE .PP \fB\-\-halt\fR .RS 4 Halt the machine, regardless of which one of the three commands is invoked\&. .RE .PP \fB\-p\fR, \fB\-\-poweroff\fR .RS 4 Power\-off the machine, regardless of which one of the three commands is invoked\&. .RE .PP \fB\-\-reboot\fR .RS 4 Reboot the machine, regardless of which one of the three commands is invoked\&. .RE .PP \fB\-f\fR, \fB\-\-force\fR .RS 4 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 \fB\-\-force\fR in \fBsystemctl\fR(1) for more details\&. .RE .PP \fB\-w\fR, \fB\-\-wtmp\-only\fR .RS 4 Only write wtmp shutdown entry, do not actually halt, power\-off, reboot\&. .RE .PP \fB\-d\fR, \fB\-\-no\-wtmp\fR .RS 4 Do not write wtmp shutdown entry\&. .RE .PP \fB\-n\fR, \fB\-\-no\-sync\fR .RS 4 Don\*(Aqt sync hard disks/storage media before halt, power\-off, reboot\&. .RE .PP \fB\-\-no\-wall\fR .RS 4 Do not send wall message before halt, power\-off, reboot\&. .RE .SH "EXIT STATUS" .PP On success, 0 is returned, a non\-zero failure code otherwise\&. .SH "NOTES" .PP These commands are implemented in a way that preserves compatibility with the original SysV commands\&. \fBsystemctl\fR(1) verbs \fBhalt\fR, \fBpoweroff\fR, \fBreboot\fR provide the same functionality with some additional features\&. .SH "SEE ALSO" .PP \fBsystemd\fR(1), \fBsystemctl\fR(1), \fBshutdown\fR(8), \fBwall\fR(1)