projects / apple / system_cmds.git / blame
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|---|---|---|
| 1815bff5 A |
1 | .\" Copyright (c) 1990, 1991, 1993 |
| 2 | .\" The Regents of the University of California. All rights reserved. | |
| 3 | .\" | |
| 4 | .\" Redistribution and use in source and binary forms, with or without | |
| 5 | .\" modification, are permitted provided that the following conditions | |
| 6 | .\" are met: | |
| 7 | .\" 1. Redistributions of source code must retain the above copyright | |
| 8 | .\" notice, this list of conditions and the following disclaimer. | |
| 9 | .\" 2. Redistributions in binary form must reproduce the above copyright | |
| 10 | .\" notice, this list of conditions and the following disclaimer in the | |
| 11 | .\" documentation and/or other materials provided with the distribution. | |
| 12 | .\" 3. All advertising materials mentioning features or use of this software | |
| 13 | .\" must display the following acknowledgement: | |
| 14 | .\" This product includes software developed by the University of | |
| 15 | .\" California, Berkeley and its contributors. | |
| 16 | .\" 4. Neither the name of the University nor the names of its contributors | |
| 17 | .\" may be used to endorse or promote products derived from this software | |
| 18 | .\" without specific prior written permission. | |
| 19 | .\" | |
| 20 | .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 21 | .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 22 | .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 23 | .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 24 | .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 25 | .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 26 | .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 27 | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 28 | .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 29 | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 30 | .\" SUCH DAMAGE. | |
| 31 | .\" | |
| 32 | .\" @(#)reboot.8 8.1 (Berkeley) 6/9/93 | |
| 33 | .\" | |
| 34 | .Dd June 9, 1993 | |
| 35 | .Dt REBOOT 8 | |
| 36 | .Os | |
| 37 | .Sh NAME | |
| 38 | .Nm reboot , | |
| 39 | .Nm halt | |
| 40 | .Nd | |
| 41 | stopping and restarting the system | |
| 42 | .Sh SYNOPSIS | |
| 43 | .Nm halt | |
| 44 | .Op Fl nq | |
| 45 | .Nm reboot | |
| 46 | .Op Fl nq | |
| 47 | .Sh DESCRIPTION | |
| 48 | The | |
| 49 | .Nm halt | |
| 50 | and | |
| 51 | .Nm reboot | |
| 52 | utilities flush the file system cache to disk, send all running processes | |
| 53 | a SIGTERM (and subsequently a SIGKILL) and, respectively, halt or restart | |
| 54 | the system. | |
| 55 | The action is logged, including entering a shutdown record into the login | |
| 56 | accounting file. | |
| 57 | .Pp | |
| 58 | The options are as follows: | |
| 59 | .Bl -tag -width Ds | |
| 60 | .It Fl n | |
| 61 | If the | |
| 62 | .Fl n | |
| 63 | option is specified, | |
| 64 | the file system cache is not flushed. | |
| 65 | This option should probably not be used. | |
| 66 | .It Fl q | |
| 67 | If the | |
| 68 | .Fl q | |
| 69 | option is specified, | |
| 70 | the system is halted or restarted quickly and ungracefully, and only | |
| 71 | the flushing of the file system cache is performed. | |
| 72 | This option should probably not be used. | |
| 73 | .El | |
| 74 | .Pp | |
| 75 | Normally, the | |
| 76 | .Xr shutdown 8 | |
| 77 | utility is used when the system needs to be halted or restarted, giving | |
| 78 | users advance warning of their impending doom. | |
| 79 | .Sh SEE ALSO | |
| 80 | .Xr sync 1 , | |
| 81 | .Xr utmp 5 , | |
| 82 | .Xr boot 8 , | |
| 83 | .Xr shutdown 8 | |
| 84 | .Sh HISTORY | |
| 85 | A | |
| 86 | .Nm reboot | |
| 87 | command appeared in | |
| 88 | .At v6 . |