The term regular expressions refers to a type of search language. You'd use it to search for text strings that match certain defined patterns. So, if you need to search through a document for email addresses, IP addresses, credit card numbers, Social Security numbers, etc., you'd define a regular expression.

At CeBIT Open Source 2009 Martin Michlmayr, past Debian project lead, presented his current projects FOSSology and FOSSBazaar, and spoke about the role his employer Hewlett-Packard is giving him in the governance project and how the FOSSBazaar work group is organized within the Linux Foundation.

Everyone knows about netfilter/iptables. Unfortunately, managing a security policy with it remains a non-trivial task for several reasons. What is needed is a tool that lets an administrator define the security policy on a higher level of abstraction and hide the internal structure of the target firewall platform.

There's been a certain amount of discussion about behavioural differences between ext3 and ext4[1], most notably due to ext4's increased window of opportunity for files to end up empty due to both a longer commit window and delayed allocation of blocks in order to obtain a more pleasing on-disk layout.

A newly-published video from the Linux Foundation's contest

Not so surprisingly I’m ex-Windows-user who recently (little less than year ago) switched to Linux, Ubuntu more precisely.

We started to study shell programming in school and we use VI to code some scripts. I noticed that all my colleagues using vi on ubuntu are very irritated and seem to envy their friends who use VI on Fedora 10 because it's very easy to use and colorful, it helps to detect syntax errors.