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

NAME
     dmesg — display the system message buffer

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

DESCRIPTION
     dmesg displays the contents of the system message buffer.

     The options are as follows:

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

     -N	     Extract the name list from the specified system instead of the
	     default ``/netbsd''.

     The system message buffer is a circular buffer of a fixed size.  If the
     buffer has been filled, the first line of the dmesg output may not be
     complete.	The size of the message buffer is configurable at compile-time
     on most systems with the MSGBUFSIZE kernel option.	 Look for MSGBUFSIZE
     in options(4) for details.

FILES
     /var/run/dmesg.boot  copy of dmesg at the time of last boot.

SEE ALSO
     options(4), syslogd(8)

HISTORY
     The dmesg command appeared in 4.0BSD.

BSD				April 30, 2004				   BSD

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