Commands using dmesg (15)
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Use sed to color the output of a human-readable dmesg output
21dmesg -T|sed -e 's|\(^.*'`date +%Y`']\)\(.*\)|\x1b[0;34m\1\x1b[0m - \2|g' -
Much more useful then parsing syslog
7dmesg -xT -l err,crit,emerg -
this is helpful because dmesg is where i/o errors, etc are logged to... you will also be able to see when the system reboots or someone attaches a thumb drive, etc. don't forget to set yourself up in /etc/aliases to get roots email.
6(crontab -l; echo '* * * * * dmesg -c'; ) | crontab - -
4dmesg -wx
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Check SATA controller type. 6.0 Gbps - SATA III 3.0 Gbps - SATA II 1.5 Gbps - SATA I Show Sample Output
1dmesg | grep -i sata | grep 'link up' -
Btrfs reports the inode numbers of files with failed checksums. Use `find` to lookup the file names of those inodes. The files may need to be deleted and replaced with backups.
1dmesg | grep -Po 'csum failed ino\S* \d+' | awk '{print $4}' | sort -u | xargs -n 1 find / -inum 2> /dev/null -
1dmesg -T
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Info about Bluetooth devices. Show Sample Output
0hciconfig;hciconfig -a hci0;lsmod |grep bt;dmesg | grep tooth -
The dmesg will show the kernel it is booting. No more dependency on files Show Sample Output
0dmesg -
0watch -n 0.1 \"dmesg | tail -n \$((LINES-6))\"
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0dmesg -L=always | less -r
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follow/wait for new kernel messages similar to `tail -f` available since util-linux 2.22.
0dmesg -w -
dmesg -t: no timestamp -W: follow new messages -l: log-level notice gawk if the fourth word is "Attached" echo a sentence through espeak
0dmesg -tW -l notice | gawk '{ if ($4 == "Attached") { system("echo New device attached | espeak") } } -
Btrfs reports the inode numbers of files with failed checksums. Use `find` to lookup the file names of those inodes.
-1dmesg | grep -Po 'csum failed ino\S* \d+' | sort | uniq | xargs -n 3 find / -inum 2> /dev/null -
get cpu info from dmesg
-16dmesg | grep cpu
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