4BSD/usr/man/man8/halt.8

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.TH HALT 8
.UC 4
.SH NAME
halt \- halt the processor
.SH SYNOPSIS
.B /etc/halt
[
.B \-n
]
.SH DESCRIPTION
.I Halt
writes out sandbagged information to the disks and then halts
the processor.  The machine does not reboot, even if the auto-reboot
switch is set on the console.
.PP
The
.B \-n
option prevent the sync before the reboot.
.SH SEE ALSO
reboot(8)
.SH BUGS