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How to Control sudo Access on Linux

The sudo command lets you run commands on Linux as though you were someone else, such as root. sudo also lets you control who can access root's capabilities, with granularity. Give users full access or let them use a small...

How to Create a Screencast on Linux

Want to make a screencast on Linux but feeling overwhelmed by the choice of tools and programs? We describe three ways to create a screencast. The quick and easy way, the hard-core and granular way, and the way we think is th...

How to Create Desktop Shortcuts on Ubuntu

Desktop icons should be simple, but they’re not on Ubuntu 18.04 LTS and newer releases like Ubuntu 19.10. Follow these easy steps to get desktop shortcuts for your favorite applications, just like on other operating sys...

How to Use the Echo Command on Linux

The echo command is perfect for writing formatted text to the terminal window. And it doesn’t have to be static text. It can include shell variables, filenames, and directories. You can also redirect echo to create text...

How to Write an fstab File on Linux

Adding a new hard drive or solid-state drive to your Linux computer? You’ll need to edit your fstab file. A lot of people find the very idea scary. Yes, it’s critical that you get it right, but armed with the righ...

How to Use the less Command on Linux

The less command lets you page through a text file, displaying a screenful of text each time. It seems like one of the simplest Linux commands at first glance, but there’s a lot more to less than meets the eye....

How to Use the mkfs Command on Linux

You must create a file system before you can use any data storage device connected to a Linux computer. Learn how to use mkfs and other utilities to do just that for all sorts of file systems. We show you how....

How to Work with Variables in Bash

Variables are vital if you want to write scripts and understand what that code you’re about to cut and paste from the web will do to your Linux computer. We’ll get you started!

How to Use the finger Command on Linux

Knowing who is using your Linux or Unix-like system is a fundamental part of managing it. Pointing at someone might be considered rude, but using your finger can still be enlightening.

How to Use the chgrp Command on Linux

The chgrp command on Linux changes the group ownership of a file or directory. Why use it instead of chown ? Sometimes a Swiss Army knife is great, but when you really need a scalpel, only a scalpel will do....
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