Control who can access files, search directories, and run scripts using the Linux’s chmod command. This command modifies Linux file permissions, which look complicated at first glance but are actually pretty simple once you know how they work.
The Linux file system relies on inodes. These vital pieces of the file system’s inner workings are often misunderstood. Let’s look at exactly what they are, and what they do.
The command line is almost 50 years old, but it’s not outdated. Text-based terminals are still the best way to accomplish many tasks, even in the age of graphical desktops and touch-screen gadgets.
The Linux free command displays how much of your computer’s memory is in use and how much is still available for programs to use. Its output can be confusing to the uninitiated, but we’ll show you how to understand it.
Brace expansion is a useful technique to generate lists of strings that can be used in scripts and aliases and on the Linux command line. Save time and avoid mistakes by typing less.