Commands using dmesg sorted by votes

Commands using dmesg (14)

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dmesg with colored human-readable dates

Use sed to color the output of a human-readable dmesg output
This is sample output - yours may be different.
21

dmesg -T|sed -e 's|$^.*'`date +%Y`']$$.*$|\x1b[0;34m\1\x1b[0m - \2|g'

jlaunay · 2012-07-31 22:21:07 13
Show errors in the kernel ring buffer

Much more useful then parsing syslog
This is sample output - yours may be different.
7

dmesg -xT -l err,crit,emerg

rugina · 2013-12-12 13:57:23 0
send kernel log (dmesg) notifications to root via cron

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.
This is sample output - yours may be different.
6

(crontab -l; echo '* * * * * dmesg -c'; ) | crontab -

syssyphus · 2009-09-30 18:13:38 0
The proper way to read kernel messages in realtime.
This is sample output - yours may be different.
4

dmesg -wx

wuziduzi · 2018-11-11 00:47:07 0
Check SATA link speed.

Check SATA controller type. 6.0 Gbps - SATA III 3.0 Gbps - SATA II 1.5 Gbps - SATA I Show Sample Output
This is sample output - yours may be different.
```
ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
```
1

dmesg | grep -i sata | grep 'link up'

FadeMind · 2013-04-18 15:41:33 0
Btrfs: Find file names with checksum errors

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.
This is sample output - yours may be different.
1

dmesg | grep -Po 'csum failed ino\S* \d+' | awk '{print $4}' | sort -u | xargs -n 1 find / -inum 2> /dev/null

Sepero · 2014-03-22 12:22:46 1
View dmesg output in human readable format
This is sample output - yours may be different.
1

dmesg -T

cbergeron · 2019-01-22 04:55:34 1

Bluetooth hardware info

Info about Bluetooth devices. Show Sample Output

hciconfig;hciconfig -a hci0;lsmod |grep bt;dmesg | grep tooth

FadeMind · 2013-08-21 12:29:23 0

easiest way to get kernel version without uname

The dmesg will show the kernel it is booting. No more dependency on files Show Sample Output
This is sample output - yours may be different.
```
# dmesg                                  
Booting Linux on physical CPU 0
Initializing cgroup subsys cpu
Linux version 3.4.67-01422-gd3ffcc7-dirty (digit@tyrion.par.corp.google.com) (gcc version 4.8 (GCC) ) #1 PREEMPT Tue Sep 16 19:34:06 CEST 2014
```
0

dmesg

sagarsakre · 2014-10-22 10:03:56 0
Print dmesg periodically
This is sample output - yours may be different.
0

watch -n 0.1 \"dmesg | tail -n \$((LINES-6))\"

kafka · 2015-06-12 05:40:58 0
dmesg pipe less with color
This is sample output - yours may be different.
0

dmesg -L=always | less -r

pqatsi · 2018-01-19 13:04:43 0
dmesg: follow/wait for new kernel messages

follow/wait for new kernel messages similar to `tail -f` available since util-linux 2.22.
This is sample output - yours may be different.
0

dmesg -w

wodny · 2019-01-05 16:25:57 1
Btrfs: Find file names with checksum errors

Btrfs reports the inode numbers of files with failed checksums. Use `find` to lookup the file names of those inodes.
This is sample output - yours may be different.
-1

dmesg | grep -Po 'csum failed ino\S* \d+' | sort | uniq | xargs -n 3 find / -inum 2> /dev/null

Sepero · 2014-03-20 06:27:15 3
get cpu info from dmesg

get cpu info from dmesg
This is sample output - yours may be different.
-16

dmesg | grep cpu

kingji · 2009-04-03 01:57:04 5

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list block devices

Shows all block devices in a tree with descruptions of what they are.

Backup file, create dir and set perms in one shot

Prior to working on/modifying a file, use the 'install -m' command which can both copy files, create directories, and set their permissions at the same time. Useful when you are working in the public_html folder and need to keep the cp'd file hidden.

Scan Network for Rogue APs.

I've used this scan to sucessfully find many rogue APs on a very, very large network.

list files recursively by size

Quick way to sum every numbers in a file written line by line

If you have a file full of numbers written line by line, you can sum every line to get the total. With a file like this: 3443535 9878977 67554 987798 232324 you will got: 14610188

import a new set of files located in a local directory into a remote Subversion repository

SED - Substitute string in next line

source: http://sed.sourceforge.net/sed1line.txt

a function to put environment variable in zsh history for editing

This only makes sense if you are using command line editing. Create the function in your current zsh session, then type eve PATH go 'UP' in your history and notice the current (editable) definition of PATH shows up as the previous command. Same as doing: PATH="'$PATH'" but takes fewer characters and you don't have to remember the escaping.

Create subdirectory and move files into it

With this form you dont need to cut out target directory using grep/sed/etc.

remove password from openssl key file

Strip a password from a openssl key to use with apache httpd server

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Commands using dmesg (14)

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