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Change Munin Hostname

December 26, 2013 by Igor Drobot Leave a Comment

Munin

If you need to change the hostname of an existing munin node with a lot of data, and you want to retain all this existing historical data, follow this procedure:
[Read more…]

Filed Under: Bash, Linux, Monitoring Tagged With: bash, mass rename, Munin

Fix locale issues in Mac OS X

August 16, 2012 by Igor Drobot Leave a Comment

I faced a problem with locales in terminal on Mac OS X Lion. Midnight Commander didn’t want to display Cyrillic symbols in filenames and directories, on my remote media-Server I’ve been getting messages like “warning: setlocale: LC_CTYPE: cannot change locale (UTF-8)”. The solution is fairly simple – add these two lines to ~/.bash_profile (by default is seems to be missing, so create the file):

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ids:~ id$ cat .bash_profile 
 
export LC_CTYPE=en_US.UTF-8
export LC_ALL=en_US.UTF-8

ids:~ id$ cat .bash_profile export LC_CTYPE=en_US.UTF-8 export LC_ALL=en_US.UTF-8

Filed Under: Apple, Bash, Mac OS X Tagged With: Apple, bash, locale, MAC OS X

Terminator

July 1, 2012 by Igor Drobot Leave a Comment

Everyone of you know the default GNOME Terminal or the KDE-Konsole, this terminals are usable only after some tweaks like color scheme or the hotkey binding.
I work usually with a lot different [Read more…]

Filed Under: Bash, Linux Tagged With: bash, Konsole, Terminal, terminator

Working with HDD

July 1, 2012 by Igor Drobot Leave a Comment

This will be a little bigger thread (and I hope it will grow with time) about working with hard disk drives. All about filesystem creation, filesystem health checks and other stuff for HDD.
[Read more…]

Filed Under: Linux Tagged With: badblocks, bash, dumpe2fs, fsck, fstab, hddtemp, mkfs, mount

Remove logs older than X days

July 12, 2011 by Igor Drobot Leave a Comment

The simplest way to remove files older than $NUMBER of days..

Dry run (files will be NOT deleted, you will see a list with files older than 100 days)

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find -mtime +100 | less

find -mtime +100 | less

Another dry run, see what would be delete:

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find -mtime +600 | xargs echo rm
rm /var/log/squid3/access.log.0
rm /var/log/squid3/access.log.2

find -mtime +600 | xargs echo rm rm /var/log/squid3/access.log.0 rm /var/log/squid3/access.log.2

Finally if you decided to remove the files – the final command to delete them:

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find -mtime +600 | xargs rm

find -mtime +600 | xargs rm

Filed Under: Bash, Linux Tagged With: bash, find, Logs, rm, xargs

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