There is a lot of useful software on these repositories but it isn't enabled by default on Ubuntu. This article will show you how to enable these repositories.
Now you have the universe/multiverse repositories enabled!
Step 1:

Navigate to [System] > [Administration] > [Software Sources] on the applications menu.
Step 2:
Password. Enter your superuser password.
Step 3:
The Software Sources window should appear. Enable the "Community maintained Open Source software (universe)" and "Software restricted by copyright or legal issues (multiverse)" option.




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