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REBOOT(8)		FreeBSD System Manager's Manual 	     REBOOT(8)

     reboot, halt, fastboot, fasthalt - stopping and restarting the system

     halt [-nqp]
     reboot [-dnqp]
     fasthalt [-nqp]
     fastboot [-dnqp]

     The halt and reboot utilities flush the file system cache to disk, send
     all running processes a SIGTERM (and subsequently a SIGKILL) and, respec­
     tively, halt or restart the system.  The action is logged, including en­
     tering a shutdown record into the wtmp(5) file.

     The options are as follows:

     -d      The system is requested to create a crash dump.  This option is
	     supported only when rebooting, and it has no effect unless a dump
	     device has previously been specified with dumpon(8).

     -n      The file system cache is not flushed.  This option should proba­
	     bly not be used.

     -q      The system is halted or restarted quickly and ungracefully, and
	     only the flushing of the file system cache is performed (if the
	     -n is not specified).  This option should probably not be used.

     -p      The system will turn off the power if it can.  This is of course
	     likely to make reboot rather similar to halt.

     The fasthalt and fastboot utilities are nothing more than aliases for the
     halt and reboot utilities.

     Normally, the shutdown(8) utility is used when the system needs to be
     halted or restarted, giving users advance warning of their impending doom
     and cleanly terminating specific programs.

     wtmp(5),  boot(8),  dumpon(8),  savecore(8),  shutdown(8),  sync(8)

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

BSD				 June 9, 1993				     1


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