The which command will show you the file-system location for a command’s executable. This is the file that is read and run whenever you type the command name. In the example below, there are two or ...

Learn how to use Linux help commands like apropos, whatis, man, info, and --help to discover commands and learn their usage.

UNIX and Linux System Administration Handbook, Fifth Edition, is today’s guide to installing, configuring, and maintaining any UNIX or Linux system, including systems that supply core Internet and ...

Linux can have a somewhat split personality. If you use it as a desktop OS, it has a lot of GUI tools, although sometimes you still need to access the command line. If you use it as a headless server, ...

How to use a Bash script for-loop for system administration in Linux Your email has been sent Bash scripting remains a staple of my endeavors in Linux as a system administrator, and I use it every day ...

Linux runs on hardware as diverse as the Raspberry Pi and powerful supercomputers, making it a flexible choice of operating system. Linux can be used via a graphical user interface similar to Windows ...

Working on the command line is an integral part of being a successful Linux user. You need to have a firm grasp of certain commands to work effectively. There are even certain commands that you must ...

You can check user groups in Linux with commands like groups, id, getent, and /etc/group to manage permissions easily.

It's a rare occasion that my Linux desktop slows down. That's not to say it never happens, as that would be a lie. Most often, when a system slowdown occurs, I can usually trace it back to a specific ...

Certifications from Red Hat, Oracle and SUSE are tailored to environments where those Linux distributions are prevalent.