If you need to outline an essay, make a list, or write something highly structured like a CSS file for a website, then look no further than the command line, especially if you’re already comfortable with the Vim text editor.

PHP is not just for websites. Command-line PHP scripting has been around for more than 10 years, which makes the language and its comprehensive libraries eminently suitable for the toolbox of any administrator who manages web servers.

You may have already tried PGP/GPG public key encryption for documents or mail, but do you know what’s going on under the hood and what level of security you’re actually getting? We take an in-depth look at GnuPG encryption.

Steer around errors and save yourself some typing by adding autocompletion to your Bash scripts.

A complete introduction to the shell for novices and masters alike.

TestDisk and its cousin PhotoRec will help you recover the data you thought you’d lost.

"In the face of constant change, both in software technology itself and in people's attitudes toward it, long-term software projects need to reinvent themselves in order to stay relevant. I'm encouraged to see the GNOME community taking up this challenge, responding to the evolving needs of users and questioning the status quo," says Matt Zimmerman, Canonical CTO.

Friends are all about friendship – names and appearances typically don’t play any role at all. Sys admin Charly’s friend the Terminator is a convincing example.