What happens when you run a Linux command? This simple act can appear straightforward, but many different things can actually occur, depending on whether you’re running an executable program, a shell ...

Uptycs Threat Research outline how malicious Linux shell scripts are used to cloak attacks and how defenders can detect and mitigate against them. Siddartha Sharma and Adhokshaj Mishra Evasive ...

The eval command allows you to run the contents of variables as commands and can be very useful, especially in scripts. There are probably a lot of Linux users who have never encountered the eval ...

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 ...

Knowing how to work with and display exit codes on the Linux command line or in scripts can help make errors more obvious. Exit codes on the Linux command line are numeric values that provide feedback ...

The command-line interface (CLI) is the cornerstone of interacting with the Linux operating system. It allows users to enter commands directly, offering greater control and flexibility compared to ...

You normally think of a critical section — that is, a piece of a program that excludes other programs from using a resource — as a pretty advanced technique. You certainly don’t often think of them as ...

The Linux terminal isn't nearly as hard as you think. Understanding the fundamentals will help get you started. These concepts apply to all Linux distributions. When many think about Linux, they think ...

Shell Scripts are very useful but not all that fun to look at. They have simple user input and output text. But, there is a way to spice up your scripts and make them a bit more eye catching with a ...