Archive for the ‘Systems’ Category

Bash / zsh : Using the history expansion

Sunday, March 28th, 2010

One of the features of bash I’ve too long overlooked is its history expansion. In this post I’ll show a few examples to get a grip at it.
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AIX : Use sar to check cpu usage

Saturday, January 30th, 2010

If you’re looking for CPU usage statistics and system performance on IBM AIX, sar might just be the tool your looking for. It’ll display information for 5 minutes intervals from midnight to current time. The output looks like this :
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Linux / Unix : Disk usage and identifying biggest files

Sunday, January 17th, 2010

When working as a systems administrator, you’ll always end up having to solve a file system full error in a hurry. Here are a few commands and hints to help you get out of it quickly on a UNIX like system.
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Gentoo Linux / Portage : How to know which package provided an installed file

Thursday, December 3rd, 2009

If there’s a file installed on your disk for which you’d like to know what package provided it, you can use the equery command like below :
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VirtualBox : Cloning a virtual hard disk

Wednesday, November 18th, 2009

If you’ve got a VirtualBox VM already installed and you wish to clone/copy it, follow the steps below :
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