usr/src/sbin/reboot/halt.8

.\" Copyright (c) 1980 The Regents of the University of California.
.\" All rights reserved.
.\"
.\" %sccs.include.redist.man%
.\"
.\"	@(#)halt.8	6.4 (Berkeley) %G%
.\"
.TH <PROGNAME> <SECTION> ""
.TH HALT 8 ""
.UC 4
.SH NAME
halt \- stop the processor
.SH SYNOPSIS
.B halt
[
.B \-n
]
[
.B \-q
]
[
.B \-y
]
.SH DESCRIPTION
.I Halt
writes out sandbagged information to the disks and then stops
the processor.  The machine does not reboot, even if the auto-reboot
switch is set on the console.
.PP
The
.B \-n
option prevents the sync before stopping.  The
.B \-q
option causes a quick halt, no graceful shutdown is attempted.  The
.B \-y
option is needed if you are trying to halt the system from a dialup.
.PP
.I Halt
normally logs the shutdown using
.IR syslog (8)
and places a shutdown record in the login accounting file
/var/log/wtmp.
These actions are inhibited if the
.B \-n
or
.B \-q
options are present.
.SH SEE ALSO
reboot(8), shutdown(8), syslogd(8)
.SH BUGS
It is very difficult to halt a VAX, as the machine wants to then
reboot itself.  A rather tight loop suffices.
Commit	Line	Data
	1	.\" Copyright (c) 1980 The Regents of the University of California.
	2	.\" All rights reserved.
	3	.\"
	4	.\" %sccs.include.redist.man%
	5	.\"
	6	.\" @(#)halt.8 6.4 (Berkeley) %G%
	7	.\"
	8	.TH <PROGNAME> <SECTION> ""
	9	.TH HALT 8 ""
	10	.UC 4
	11	.SH NAME
	12	halt \- stop the processor
	13	.SH SYNOPSIS
	14	.B halt
	15	[
	16	.B \-n
	17	]
	18	[
	19	.B \-q
	20	]
	21	[
	22	.B \-y
	23	]
	24	.SH DESCRIPTION
	25	.I Halt
	26	writes out sandbagged information to the disks and then stops
	27	the processor. The machine does not reboot, even if the auto-reboot
	28	switch is set on the console.
	29	.PP
	30	The
	31	.B \-n
	32	option prevents the sync before stopping. The
	33	.B \-q
	34	option causes a quick halt, no graceful shutdown is attempted. The
	35	.B \-y
	36	option is needed if you are trying to halt the system from a dialup.
	37	.PP
	38	.I Halt
	39	normally logs the shutdown using
	40	.IR syslog (8)
	41	and places a shutdown record in the login accounting file
	42	/var/log/wtmp.
	43	These actions are inhibited if the
	44	.B \-n
	45	or
	46	.B \-q
	47	options are present.
	48	.SH SEE ALSO
	49	reboot(8), shutdown(8), syslogd(8)
	50	.SH BUGS
	51	It is very difficult to halt a VAX, as the machine wants to then
	52	reboot itself. A rather tight loop suffices.