1.\" Copyright (c) 1980, 1991 Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" %sccs.include.redist.man% 5.\" 6.\" @(#)dmesg.8 6.4 (Berkeley) 03/16/91 7.\" 8.Dd 9.Dt DMESG 8 10.Os BSD 4 11.Sh NAME 12.Nm dmesg 13.Nd "collect system diagnostic messages to form error log" 14.Sh SYNOPSIS 15.Nm dmesg 16.Op Fl 17.Sh DESCRIPTION 18.Sy N.B.: 19.Nm Dmesg 20is obsoleted by 21.Xr syslogd 8 22for maintenance of the system error log. 23.Pp 24.Nm Dmesg 25looks in a system buffer for recently printed diagnostic messages 26and prints them on the standard output. 27The messages are those printed or logged 28by the system when errors occur. 29.Pp 30Available option: 31.Bl -tag -width Ds 32.It Fl 33.Nm Dmesg 34computes (incrementally) the new messages since the last time it 35was run and places these on the standard output. 36.El 37.Sh FILES 38.Bl -tag -width /var/log/msgbuf -compact 39.It Pa /var/log/msgbuf 40scratch file for memory of 41.Ql Fl 42option 43.El 44.Sh SEE ALSO 45.Xr syslogd 8 46.Sh HISTORY 47The 48.Nm 49command appeared in 50.Bx 4.0 . 51