reboot man page on OpenBSD

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REBOOT(8)		OpenBSD 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.

	     See also the description of powerdown, below.

     -q	     Quick.  The system is halted or restarted quickly and
	     ungracefully, 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

     /etc/rc.shutdown  Script which is run at shutdown time.  If it sets the
		       variable powerdown to ``YES'', halt will attempt to
		       power down the machine after it has halted.

     reboot(2), utmp(5), boot_alpha(8), boot_amd64(8), boot_hp300(8),
     boot_hppa(8), boot_hppa64(8), boot_i386(8), boot_luna88k(8),
     boot_mac68k(8), boot_macppc(8), boot_mvme68k(8), boot_mvme88k(8),
     boot_sparc(8), boot_sparc64(8), boot_vax(8), boot_zaurus(8),
     rc.shutdown(8), savecore(8), shutdown(8), sync(8)

     A reboot command appeared in Version 6 AT&T UNIX.

OpenBSD 4.9		       November 19, 2007		   OpenBSD 4.9

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