Install DEB file on Ubuntu 20.04 Focal Fossa Linux

A file that has the .DEB file extension is a Debian software package file. They contain software to be installed on Debian or a Debian-based operating system. Ubuntu falls into that category, being based on Debian and capable of executing .DEB files. In this article,...

Realtek driver for Ubuntu 20.04

https://www.realtek.com/en/component/zoo/category/network-interface-controllers-10-100-1000m-gigabit-ethernet-pci-express-software From above link, download r8168-8.049.02.tar.bz2

Comparing changes with git diff

Diffing is a function that takes two input data sets and outputs the changes between them. git diff is a multi-use Git command that when executed runs a diff function on Git data sources. These data sources can be commits, branches, files and more. This...

How to reset $PATH?

The suggested answer of removing .bash_profile is not a good idea in general. There are other things that can be set in that file besides PATH definitions. If you want to undo the effects of your experimentation, just remove or comment out...