Dmesg

Dmesg is used to examine or control the kernel ring buffer.
Syntax : dmesg [options]
-C : clear the kernel ring buffer
-c : read and clear all messages
-D : disable printing messages to console
-d : show time delta between printed messages
-e : show local time and time delta in readable format
-E : enable printing messages to console
-F file : use the file instead of the kernel log buffer
-f list : restrict output to defined facilities
-k : display kernel messages
-l list : restrict output to defined levels
-n level : set level of messages printed to console
-r : print the raw message buffer
-S : force to use syslog(2) rather than /dev/kmsg
-s size : buffer size to query the kernel ring buffer
-T : show human readable timestamp
-t : don't print messages timestamp
-u : display userspace messages
-x : decode facility and level to readable string
For more informations type : dmesg -h

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