Once you get the hang of regular expressions, you'll find them invaluable. The trick is to start small - I'll show you how. Quick: If you shout “regular expressions” in a crowd of Linux users, what ...

These days, you can’t throw a USB stick without hitting something that’s running Linux. It might be a phone, an embedded device, or your TV. Either way, it’s running Linux, and somewhere along the ...

Search and replace is a key part of most text editors, and it’s generally very simple to use: type a keyword, press [Enter] to look for it, then step through however many matches there might be. This ...

Have a quick question that I think the powers of Ars can solve. I have an existing linux log parsing script that is working fine but I want to add new functionality to it. Given the following 2 log ...

To say that this show is chock full of info is an understatement! John and Dave continue their tour through the terminal, discussing shells, public key encryption and various other nuances. The meat ...