Dmesg with Date and Time

Linux and Unix-Like Red Hat
1

Dear All,

I am looking to enable Date and time in dmesg output for for centos 5.8.

Unfortunately the current version doesn't support -T option.

Also i am looking for solutions which can enable the date& time via kernal or updating the dmesg utility.

or maybe via single command line.

Best Regards
Pistachio

2

There is no kernel or command line option to turn on dmesg formatted date output in CentOS 5.8.

However you can easily write a script to produce a new file from the dmesg output that does contain a formatted date.

Here is a Perl script that I sometimes use:

#!/usr/bin/perl -wn

use strict;

foreach my $line (<>) {
    my ($uptime) = do { local @ARGV='/proc/uptime';<>}; ($uptime) = ($uptime =~ /^(\d+)\./);
    $line=~/^\[\s*(\d+)\.\d+\](.+)/;
    printf "[%s]%s\n", scalar localtime(time - $uptime + $1), $2;
}

I did not write this script. Just found it somewhere on the internet. Do an Internet search and you will find a lot of similar scripts.

Just pipe the output of dmesg to this script and you should get date formatted output

3

I tried to execute the same script in Centos 6.4. But I didn't get any output..

perl dmesg.pl

NO output triggered.

4