Sandra Henry-Stocker was a programmer, Linux systems administrator, security engineer and Linux journalist for most of her 30-year career. She describes herself as "USL" (Unix as a second language) ...

Imagine that you want to output multiple lines of text in Bash, or any shell script. Maybe it’s for a help string for a particularly convoluted shell script you’re writing. You could have a separate ...

I realize I've been playing a bit fast and loose with my shell scripts over the last few months, because I haven't talked about how to ensure that error conditions ...

If you run into problems building, testing or running complex bash scripts, don’t lose heart. There are many ways you can help ensure that your scripts will work flawlessly. In this post, we’ll ...

One of the most powerful features of Unix and Linux is that using traditional command line tools, everything is a stream of bytes. Granted, modern software has blurred this a bit, but at the command ...

This month, I thought it would be interesting to take a bit of a detour from my usual multi-month programming projects and instead focus on a specific topic that is of great importance to people ...

Jack Wallen shows how you can create a Linux shell script that requires a password without having to save a password within the script. Image: dennizn/Adobe Stock ...

Have you ever wanted to run a Linux shell on your iOS device to transfer files, write shell scripts, or simply to use Vi to develop code or edit files? Now you can, with a project called iSH that is ...