Installing and uninstalling a program

We've installed a few programs throughout the book so far, but have yet to delve into the apt-get command and the family of software-installation utilities. Now, we will learn how to install and uninstall any program available for Raspbian as well as how to search for new software and run updates.

Getting ready

Stay in your terminal window, and get ready to install some applications!

How to do it...

1. The apt-* commands are a suite of utilities that allow you to do various things with installed packages. To install a package, we use the apt-get tool, and the install command, like this:

           sudo apt-get install <packagename>
   

2. Let's install something cool - how about a Matrix screensaver? It is super easy and works great from the command line. To look for a package, we use the apt-cache search command. apt-cache is another tool in the apt-* family of utilities, and it checks the software database for matches.

3. Running sudo apt-cache search matrix results...