who Command in Linux
who is a command-line utility that displays a list of currently logged in users. It can also show the current run level, time of the last system boot, and more.
How to Install Python 3.9 on Ubuntu 20.04
In this article, we'll show you two ways to install Python 3.9 on Ubuntu 20.04.
How to Install Nvidia Drivers on Ubuntu 20.04
This article describes how to install the proprietary Nvidia drivers on Ubuntu 20.04.
How to Undo Last Git Commit
In Git you can undo changes using the git reset command followed by the commit identifier.