It is easy to dismiss bash — the typical Linux shell program — as just a command prompt that allows scripting. Bash, however, is a full-blown programming language. I wouldn’t presume to tell you that ...

Are you currently learning Bash? Have you seen things like $0 and $EUID and wondered what they mean? Or what the difference is between $UID and $EUID? I'll cover ...

The first software that I was actually paid to develop was a 2-page shell script that prompted the user for a dozen or so pieces of information, before launching a set of cooperating processes. Those ...

I've recently written about using bash arrays and bash regular expressions, so here's a more useful example of using them to test IP addresses for validity. To belabor the obvious: IP addresses are 32 ...

Here's a secret you might not have known: you don't need advanced programming skills to write basic code, and learning how can make a massive difference in the way you use your computer. Anyone can do ...