Variables often look like $var, but they also look like $1, $*, $? and $$. Let's take a look at what all these $ values can tell you. A lot of important values are ...

This post follows up on Part 1 by examining the many ways that you can test the value of variables – e.g., whether they equal particular strings like “yes” or “no”, if they have a numeric value, if ...

Do you want to create a Shell script in your Linux system? This guide will take you through how to create a shell script using multiple text editors, how to add comments, and how to use Shell ...

Last month, we took a strange turn and actually just focused on the basics of shell scripting, special variable notation, rather than solving some complex and obscure scripting challenge. I'm going to ...

The printf command offers well-defined behavior following the POSIX standard, which means it works the same way across shells and systems. Where echo often fails with escape sequences, printf handles ...

Community driven content discussing all aspects of software development from DevOps to design patterns. If a developer wants to build a workflow, shell script or build job of any merit, they’ll need ...