The objective is to install Gnome Shell Extensions on Ubuntu 20.04 Focal Fossa Linux Desktop.
In this tutorial you will learn:
GCC, the GNU Compiler Collection is a compiler system developed to support various programming languages. It is a standard compiler used in most projects related to GNU and Linux, for example, Linux kernel. The objective of this tutorial is to install GCC the C compiler on Ubuntu 20.04 LTS Focal Fossa Linux. This will be achieved by using the apt install command.
In this tutorial you will learn:
In this tutorial we will install multiple versions of GCC and G++ compilers using the apt install command. Furthermore, by use of the update-alternatives tool you will learn how to easily switch between multiple GCC and G++ compiler versions and how to check the currently selected compiler version.
In this tutorial you will learn:
Compose is a feature for setting up and running multi-container Docker applications. With a single command, you can create and start all the services from your configuration. To learn more about Compose see How To Launch Containers With Docker Compose. The objective of this short guide is to install docker-compose on Ubuntu 20.04 Focal Fossa Linux Server/Desktop.
In this tutorial you will learn:
In this tutorial we will perform an installation of Oracle Java SE Development Kit on Ubuntu 20.04 Focal Fossa Desktop/Server.
In this tutorial you will learn:
update-alternatives tool 
In this article we will discuss a procedure on how to install OpenJDK java on Ubuntu 20.04 LTS Focal Fossa Linux.
In this tutorial you will learn:
The Tor Browser is free and open-source software for anonymous Internet searching, which protects your identity online by defending you against tracking and surveillance. In this article you will learn how to install Tor Browser on Ubuntu 20.04 LTS Focal Fossa Linux.
In this tutorial you will learn:
There exist various ways of restarting network on Ubuntu 20.04. Possibly the simplest way would be to restart network from GUI such as GNOME. Other ways would include the use of the command line and commands netplan and ip. Finally, the NetworkManager command line tool nmcli or the System V init scripts can be used to successfully restart network on Ubuntu 20.04 Focal Fossa.
In this tutorial the reader will be provided with comprehensive information on:
netplan command ip command nmcli 
In this tutorial you will learn how to uninstall the NVIDIA drivers on Ubuntu 20.04 Focal Fossa Linux, hence switch back to the opensource Nouveau Nvidia drivers.
In this tutorial you will learn:
The objective of this guide is to configure static IP address on Ubuntu 20.04 Focal Fossa Linux.
In this tutorial you will learn:
In this tutorial we will be installing Adobe Acrobat Reader DC application on Wine using the snap software installation tool.
In this tutorial you will learn:
This Ubuntu 20.04 guide introduces the new Ubuntu 20.04 and explains how to get this operating system and how to install it on your computer. It also provides you with comprehensive instructions on how to use Ubuntu 20.04.
We include the introduction to command line and bash scripting, followed by things to do after installing Ubuntu 20.04 with the focus on software recommendations for the Ubuntu 20.04 system.
We also provide you with some useful Ubuntu 20.04 tricks and discuss using Ubuntu 20.04 on such devices as Android smartphone and Raspberry Pi.
Ubuntu is a free and open-source Linux distribution based on Debian. In this section, we will explore new features of Ubuntu 20.04.