projects / unix-history / blame
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1 | .\" Copyright (c) 1980 The Regents of the University of California. |
| 2 | .\" All rights reserved. | |
| 79ff4b9e | 3 | .\" |
| 3177b9af | 4 | .\" %sccs.include.redist.man% |
| 79ff4b9e | 5 | .\" |
| 3177b9af | 6 | .\" @(#)halt.8 6.4 (Berkeley) %G% |
| 5bcf4c18 KB |
7 | .\" |
| 8 | .TH <PROGNAME> <SECTION> "" | |
| cc6525dc | 9 | .TH HALT 8 "" |
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10 | .UC 4 |
| 11 | .SH NAME | |
| 12 | halt \- stop the processor | |
| 13 | .SH SYNOPSIS | |
| 3177b9af | 14 | .B halt |
| 79ff4b9e KM |
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. | |
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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 | |
| 3177b9af | 42 | /var/log/wtmp. |
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43 | These actions are inhibited if the |
| 44 | .B \-n | |
| 45 | or | |
| 46 | .B \-q | |
| 47 | options are present. | |
| 79ff4b9e | 48 | .SH SEE ALSO |
| b77763cc | 49 | reboot(8), shutdown(8), syslogd(8) |
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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. |