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

NAME
     dmesg -- display the system message buffer

SYNOPSIS
     dmesg [-a]	[-M core] [-N system]

DESCRIPTION
     Dmesg displays the	contents of the	system message buffer.	If neither the
     -N	nor the	-M option is specified,	the buffer is read from	the currently
     running kernel via	the sysctl(3) interface.  Otherwise, the buffer	is
     read from the specified core file (or from	the default one), using	the
     name list from the	specified kernel image (or from	the default image).

     The options are as	follows:

     -a	     Show all data in the message buffer.  This	includes any syslog
	     records and /dev/console output.

     -M	     Extract values associated with the	name list from the specified
	     core instead of the default /dev/kmem.

     -N	     Extract the name list from	the specified system instead of	the
	     default, which is the kernel image	the system has booted from.

FILES
     /var/run/dmesg.boot  usually a snapshot of	the buffer contents taken soon
			  after	filesystems are	mounted	at startup time

SEE ALSO
     sysctl(3),	syslogd(8)

HISTORY
     The dmesg command appeared	in 4.0BSD.

FreeBSD	9.2			 June 5, 1993			   FreeBSD 9.2

NAME | SYNOPSIS | DESCRIPTION | FILES | SEE ALSO | HISTORY

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