dmesg using human readable output format

dmesg – print or control the kernel ring buffer

dmesg output drives me crazy due to the timestamp. A lot of times I said: “there must be a way to human readable date !!!”  and now it is:

# dmesg -T

No vars and conversions, just a simple option !!

Unfortunately this option doesn’t work on old dmesg releases. On Ubuntu 12.10 (utili-linux v2.20), it works, no way for Red Hat 6 .

Fedora 19 (util-linux 2.23) can do better using color output and pager by the following option:

# dmesg -H

If  -T and -H option are not available, you can use the follow script:

# 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

 

Linux commands in a nutshell

writing down a series of posts about GNU Linux commands.is one of the main purposes of this blog.
In these posts we are going to review some Linux commands with practical examples.This is not a complete but it’s a compact list of commands to refer when needed.These posts are not a linux training or a complete guide: you can use manpages for that (aka RTFM)The goal is share information about GNU Linux commands , improve my knowledge and use this website to cut & paste commands that I’m not able to remember 🙂

Bug fixes, suggestions and feedbacks are welcome as usual !

Posts list:

dmesg using human readable output format

About me

Giuseppe La Rosa

IT Specialist

Milan, Italy

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 INFO

Hi, my name is Giuseppe La Rosa, I’m a System Engineer living in Milan (Italy). I was born in Catania (Italy) in 1978. I started to get interested in the world of computer science at the age of 8 years. I graduated in 2006 with a degree in Information Technology and then I attended a stage at New York University for 3 months in bioinformatics algorithms filed.
After that, I came back to Italy and I worked in several roles as Java Developer and System administrator. Now I am an Operations Business Manager in a big Telco company.
I have a deep passions in several fields related to IT as OS, languages, security, Cloud and much more.

SKILLS

OS: Linux, Unix, HP-UX, Oracle Exadata
Languages : Java (J2SE, J2EE, Servlet), Python, Ruby on Rails, Puppet, Shell scripting
Web languages: JSP, ASP, HTML, CSS, XML+DTD
Tools & other: HP Service Guard, Veritas Cluster, Veritas Volume Manager

CERTIFICATIONS

RHCA (Red Hat Certified Architect)
Red Hat Certified System Administrator in OpenStack
Platform-as-a-Service: Red Hat OpenShift Enterprise
Red Hat Server Hardening
Red Hat Performance Tuning
RHCVA (Red Hat Certified Virtualization Administrator)
RHCE (Red Hat Certified Engineer)
ITIL V3 Foundation
Ec-Council Certified Ethical Hacker v7

INTERESTS

Photo, Ju Jitsu and above all motorbike