You have thousands of commands at your disposal as a Unix administrator. However, even the most advanced administrators only use a finite number of tools and utilities on an ongoing basis. The ...

If you use Windows today and type ls, cat, grep, or awk in a terminal, there is a good chance something useful will happen. That was not always true. For most of the history of personal computing, ...

Linux might sound scary for first-time Linux users, but actually, it isn’t. Linux is a bunch of open-source Unix operating systems based on Linux Kernel. These operating systems are called Linux ...

The quirk revolved around sudo's treatment of user IDs. If you typed the command with a user ID of -1 or its unsigned equivalent 4294967295, it would treat you as if you had root access (user ID 0) ...