1 '\" te
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   3 .\" Copyright (c) 2013, Joyent, Inc. All rights reserved.
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   7 .TH HALT 1M "Jul 26, 2013"
   8 .SH NAME
   9 halt, poweroff \- stop the processor
  10 .SH SYNOPSIS
  11 .LP
  12 .nf
  13 \fB/usr/sbin/halt\fR [\fB-dlnqy\fR]
  14 .fi
  15 
  16 .LP
  17 .nf
  18 \fB/usr/sbin/poweroff\fR [\fB-dlnqy\fR]
  19 .fi
  20 
  21 .SH DESCRIPTION
  22 .sp
  23 .LP
  24 The \fBhalt\fR and \fBpoweroff\fR utilities write any pending information to
  25 the disks and then stop the processor. The \fBpoweroff\fR utility has the
  26 machine remove power, if possible.
  27 .sp
  28 .LP
  29 The \fBhalt\fR and \fBpoweroff\fR utilities normally log the system shutdown to
  30 the system log daemon, \fBsyslogd\fR(1M), and place a shutdown record in the
  31 login accounting file \fB/var/adm/wtmpx\fR. These actions are inhibited if the
  32 \fB-n\fR or \fB-q\fR options are present.
  33 .SH OPTIONS
  34 .sp
  35 .LP
  36 The following options are supported:
  37 .sp
  38 .ne 2
  39 .na
  40 \fB\fB-d\fR\fR
  41 .ad
  42 .RS 6n
  43 Force a system crash dump before rebooting. See \fBdumpadm\fR(1M) for
  44 information on configuring system crash dumps.
  45 .RE
  46 
  47 .sp
  48 .ne 2
  49 .na
  50 \fB\fB-l\fR\fR
  51 .ad
  52 .RS 6n
  53 Suppress sending a message to the system log daemon, \fBsyslogd\fR(1M), about
  54 who executed \fBhalt\fR.
  55 .RE
  56 
  57 .sp
  58 .ne 2
  59 .na
  60 \fB\fB-n\fR\fR
  61 .ad
  62 .RS 6n
  63 Prevent the \fBsync\fR(1M) before stopping.
  64 .RE
  65 
  66 .sp
  67 .ne 2
  68 .na
  69 \fB\fB-q\fR\fR
  70 .ad
  71 .RS 6n
  72 Quick halt. No graceful shutdown is attempted.
  73 .RE
  74 
  75 .sp
  76 .ne 2
  77 .na
  78 \fB\fB-y\fR\fR
  79 .ad
  80 .RS 6n
  81 This option is ignored for backwards compatibility.
  82 .RE
  83 
  84 .SH FILES
  85 .sp
  86 .ne 2
  87 .na
  88 \fB\fB/var/adm/wtmpx\fR\fR
  89 .ad
  90 .RS 18n
  91 History of user access and administration information.
  92 .RE
  93 
  94 .SH SEE ALSO
  95 .sp
  96 .LP
  97 \fBdumpadm\fR(1M), \fBinit\fR(1M), \fBreboot\fR(1M), \fBshutdown\fR(1M),
  98 \fBsync\fR(1M), \fBsyslogd\fR(1M), \fBinittab\fR(4), \fBattributes\fR(5),
  99 \fBsmf\fR(5)
 100 .SH NOTES
 101 .sp
 102 .LP
 103 The \fBhalt\fR and \fBpoweroff\fR utilities do not cleanly shutdown
 104 \fBsmf\fR(5) services. Execute the scripts in \fB/etc/rcnum.d\fR or execute
 105 shutdown actions in \fBinittab\fR(4). To ensure a complete shutdown of system
 106 services, use \fBshutdown\fR(1M) or \fBinit\fR(1M) to reboot a Solaris system.