REBOOT(8) BSD System Manager's Manual REBOOT(8)
reboot, halt - stopping and restarting the system
halt [-dnpq]
reboot [-dnq]
The halt and reboot utilities flush the file system cache to disk, run
the system shutdown script, send all running processes a SIGTERM (and
subsequently a SIGKILL), and, respectively, halt or restart the system.
The action is logged, including entering a shutdown record into the login
accounting file.
The options are as follows:
-d Causes system to create a dump before rebooting. This option is
useful for debugging system dump procedures or capturing the
state of a corrupted or misbehaving system. See savecore(8) for
information on how to recover this dump.
-n Prevent file system cache from being flushed. This option should
probably not be used.
-p Causes the system to power down, if it is being halted, and the
hardware supports automatic power down. (Currently supported on
some i386, luna88k, mac68k, macppc, sparc, sparc64 and zaurus
platforms.)
-q Quick. The system is halted or restarted quickly and ungraceful-
ly, and only the flushing of the file system cache is performed.
This option should probably not be used.
Normally, the shutdown(8) utility is used when the system needs to be
halted or restarted, giving users advance warning of their impending
doom.
/etc/rc.shutdown script which is run at shutdown time
reboot(2), utmp(5), boot_alpha(8), boot_amd64(8), boot_hp300(8),
boot_hppa(8), boot_i386(8), boot_mac68k(8), boot_macppc(8),
boot_mvme68k(8), boot_mvme88k(8), boot_sparc(8), boot_sparc64(8),
boot_vax(8), rc.shutdown(8), savecore(8), shutdown(8), sync(8)
A reboot command appeared in Version 6 AT&T UNIX.
MirOS BSD #10-current June 9, 1993 1
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