dnsg
Command dmesg (short for display message) is an UNIX command used in order to print to stdout the “kernel buffer” messages. This cmd is useful for booting messages (when HW is initialized)…
http://linux.die.net/man/1/dmesg
Time stamps
If you haven’t “-T” option (dmesg -T shows readable timestamps) for human readable timestamps you can use following 1-line :
dmesg | awk -F ] '{"cat /proc/uptime | cut -d \" \" -f 1" | getline st;a=substr( $1,2, length($1) - 1);print strftime("%F %H:%M:%S %Z",systime()-st+a)" -> "$0}' | more
or (multiline)
dmesg\
| awk -F ] '{"cat /proc/uptime | cut -d \" \" -f 1"\
| getline st;a=substr( $1,2, length($1) - 1);\
print strftime("%F %H:%M:%S %Z",systime()-st+a)" -> "$0}' | more
Output:
...
2013-08-15 16:43:34 CEST -> [762273.568828] eth0: link down
2013-08-15 16:47:08 CEST -> [762487.411978] eth0: link up, full duplex, speed 1 Gbps
...