launchd/src/rc.8

   1 .\"     $NetBSD: rc.8,v 1.3 1994/11/30 19:36:26 jtc Exp $
   2 .\"
   3 .\" Copyright (c) 1980, 1991, 1993
   4 .\"     The Regents of the University of California.  All rights reserved.
   5 .\"
   6 .\" Redistribution and use in source and binary forms, with or without
   7 .\" modification, are permitted provided that the following conditions
   8 .\" are met:
   9 .\" 1. Redistributions of source code must retain the above copyright
  10 .\"    notice, this list of conditions and the following disclaimer.
  11 .\" 2. Redistributions in binary form must reproduce the above copyright
  12 .\"    notice, this list of conditions and the following disclaimer in the
  13 .\"    documentation and/or other materials provided with the distribution.
  14 .\" 3. All advertising materials mentioning features or use of this software
  15 .\"    must display the following acknowledgement:
  16 .\"     This product includes software developed by the University of
  17 .\"     California, Berkeley and its contributors.
  18 .\" 4. Neither the name of the University nor the names of its contributors
  19 .\"    may be used to endorse or promote products derived from this software
  20 .\"    without specific prior written permission.
  21 .\"
  22 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25 .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32 .\" SUCH DAMAGE.
  33 .\"
  34 .\"     @(#)rc.8        8.2 (Berkeley) 12/11/93
  35 .\"
  36 .Dd December 11, 1993
  37 .Dt RC 8
  38 .Os BSD 4
  39 .Sh NAME
  40 .Nm rc
  41 .Nd command script for auto\-reboot and daemons
  42 .Sh SYNOPSIS
  43 .Nm rc
  44 .Nm rc.local
  45 .Sh DESCRIPTION
  46 .Nm Rc
  47 is the command script which controls the automatic reboot and
  48 .Nm rc.local
  49 is the script holding commands which are pertinent only
  50 to a specific site.
  51 .Pp
  52 When an automatic reboot is in progress,
  53 .Nm rc
  54 is invoked with the argument
  55 .Em autoboot .
  56 The first portion of
  57 .Nm rc
  58 runs an
  59 .Xr fsck 8
  60 with option
  61 .Fl p
  62 to ``preen'' all the disks of minor inconsistencies resulting
  63 from the last system shutdown and to check for serious inconsistencies
  64 caused by hardware or software failure.
  65 If this auto-check and repair succeeds, then the second part of
  66 .Nm rc
  67 is run.
  68 .Pp
  69 The second part of
  70 .Nm rc ,
  71 which is run after an auto-reboot succeeds and also if
  72 .Nm rc
  73 is invoked when a single user shell terminates (see
  74 .Xr init 8 ) ,
  75 starts all the daemons on the system, preserves editor files
  76 and clears the scratch directory
  77 .Pa /tmp .
  78 .Pp
  79 .Nm Rc.local
  80 is executed immediately before any other commands after a successful
  81 .Xr fsck .
  82 Normally, the first commands placed in the
  83 .Nm rc.local
  84 file define the machine's name, using
  85 .Xr hostname 1 ,
  86 and save any possible core image that might have been
  87 generated as a result of a system crash, with
  88 .Xr savecore 8 .
  89 The latter command is included in the
  90 .Nm rc.local
  91 file because the directory in which core dumps are saved
  92 is usually site specific.
  93 .Pp
  94 Following tradition, the startup files
  95 .Nm rc
  96 and
  97 .Nm rc.local
  98 reside in
  99 .Pa /etc .
 100 .Sh SEE ALSO
 101 .Xr init 8 ,
 102 .Xr reboot 8 ,
 103 .Xr savecore 8
 104 .Sh HISTORY
 105 The
 106 .Nm
 107 command appeared in
 108 .Bx 4.0 .