Ubuntu software repository is one of the bigger, and this means that you can easily install a lot of software with the Ubuntu Software Center or from the command line with a simple
sudo apt-get install softwarename, but sometimes you want a software that is not present or perhaps a newer release of the one available in the main repository, in this cases you can use a PPA.
A Personal Package Archive (PPA) is a special software repository for uploading source packages to be built and published as an APT repository by Launchpad or a similar application, once is published anyone can use it and install software from there, just keep in mind that once that you add a PPA you “trust” the software published from that source, so add PPA only when really needed and only from known and safe sources.
Y PPA Manager is a software that can help you in manage,add,remove and search easily PPA in your Ubuntu.
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