A PPA is a way to distribute software via a repository. If you want a application that is not available via the software-center, or there is a PPA with a newer version, you can add a PPA to get that application. After the PPA has been added, you will receive notification via the software updater when there is a new version available for the application.
1) Adds the repository - ppa:upubuntu-com/tor - to your system.
2) Refreshes your repository lists.
3) Installs the application(tor-browser).
sudo is used to asks for root privileges.
sudo add-apt-repository ppa:upubuntu-com/tor
sudo apt-get update
sudo apt-get install tor-browser
Edit then to
Then a Software Sources window will open go to the tab
Other Software click the
Add... button left bottom of the window
copy/paste the repository in the
APT line: box
Then click the
Add Source button.
Give your password:
Close the Software Sources window. open up software updater to refresh you system. Then search for your applications in software center