The shell does far more than run commands. Here’s how Bash expands your input behind the scenes so you can write cleaner, ...

Ever wondered why programming in Bash is so difficult? Bash employs the same constructs as traditional programming languages; however, under the hood, the logic is rather different. The Bourne-Again ...

There are three facts we can use to our advantage: The option variable ("optvar") stores the option name currently being processed (e.g., a, b, or c). When complete, getopts returns a number greater ...

bash, or the Bourne again shell, is the default shell in most Linux distributions. The popularity of the bash shell amongst Linux and UNIX users is no accident. It has many features to enhance ...

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 ...

The Linux command line allows you to get a lot of work done – especially when you learn enough “tricks” to make it interesting and productive. The expression “Linux tricks” refers to the many ways ...