Linux, known for its robustness and flexibility, has been a favorite among developers, system administrators, and technology enthusiasts. One of the pillars of Linux's capabilities is its inherent ...

Each Linux command returns an exit code, with 0 indicating success and non-zero values indicating failure. You can use the $? variable to access the exit code and control program flow in scripts. Be ...

Historically, operating systems generally come with some form of scripting language which admins and power users can use to create custom tools. Harking back to the home computer craze of the 1970s ...

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 ...

Linux provides commands for converting numbers from one base to another. Learn how to uses these commands and how to make the process easier with scripts and aliases. You might not be challenged very ...

The cheat command, available for installation on many Linux systems, provides an easy way to make cheat sheets available for hundreds of commands. The term “cheat sheet” has long been used to refer to ...

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 ...

The Windows Subsystem for Linux is bridging the divide between Windows and Linux by letting you run Windows 10 programs directly within a Linux shell. One of the strengths of the Windows Subsystem for ...