GNU/Linux Ubuntu 19.10 Installing GNOME Tweaks Guide
Hi! The Tutorial shows you Step-by-Step How to Install GNOME Tweaks (formerly GNOME Tweak Tool) in Ubuntu 19.10 Eoan GNU/Linux Desktop.
And Gnome Tweaks for Ubuntu 19.10 is a Graphical interface for advanced GNOME 3+ Settings.
Moreover, Tweaks is Designed for GNOME Shell but Can be Used in other Desktops. Only a few Features will be Missing when Tweaks is run on a Different Desktop.
Finally, this guide includes detailed instructions about to Installing Best GNOME Extensions on Ubuntu.

1. Terminal Quick Start
How to Quick Start with Command Line on Ubuntu
Here Bash Shell Ubuntu Quick Start GuidePlease Donate $1 to Remove Ads!Link to Step-by-Step Guide on Getting Started with Command Line in UbuntuFirst, Update the Apt Repo Sources with:
Copysudo apt update