dmesg man page on aLinux

Man page or keyword search:  
man Server   7435 pages
apropos Keyword Search (all sections)
Output format
aLinux logo
[printable version]

DMESG(1)							      DMESG(1)

NAME
       dmesg - print or control the kernel ring buffer

SYNOPSIS
       dmesg [-c] [-r] [-n level] [-s bufsize]

DESCRIPTION
       dmesg is used to examine or control the kernel ring buffer.

       The program helps users to print out their bootup messages.  Instead of
       copying the messages by hand, the user need only:
	      dmesg > boot.messages
       and mail the boot.messages file to whoever can debug their problem.

OPTIONS
       -c     Clear the ring buffer contents after printing.

       -r     Print the raw message buffer, i.e., don't strip  the  log	 level
	      prefixes.

       -s bufsize
	      Use  a  buffer  of size bufsize to query the kernel ring buffer.
	      This is 16392 by default.	 (The  default	kernel	syslog	buffer
	      size was 4096 at first, 8192 since 1.3.54, 16384 since 2.1.113.)
	      If you have set the kernel buffer to be larger than the  default
	      then this option can be used to view the entire buffer.

       -n level
	      Set  the	level at which logging of messages is done to the con‐
	      sole.  For example, -n 1 prevents	 all  messages,	 except	 panic
	      messages, from appearing on the console.	All levels of messages
	      are still written to /proc/kmsg, so syslogd(8) can still be used
	      to  control  exactly  where kernel messages appear.  When the -n
	      option is used, dmesg will not print or clear  the  kernel  ring
	      buffer.

	      When  both options are used, only the last option on the command
	      line will have an effect.

SEE ALSO
       syslogd(8)

AVAILABILITY
       The dmesg command is part of the util-linux-ng package and is available
       from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.

								      DMESG(1)
[top]

List of man pages available for aLinux

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
...................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net