:: What is PPA on Ubuntu
PPA is Personal Package Archives allow you to upload Ubuntu source packages to be built and published as an apt repository by Launchpad.
:: How to add PPA repository
$ sudo add-apt-repository ppa:repository/package
example:
$ sudo add-apt-repository ppa:emesene-team/emesene-stable You are about to add the following PPA to your system: A ppa containing the latest stable release of emesene More info: https://launchpad.net/~emesene-team/+archive/emesene-stable Press [ENTER] to continue or ctrl-c to cancel adding it gpg: keyring `/tmp/tmpnj023s/secring.gpg' created gpg: keyring `/tmp/tmpnj023s/pubring.gpg' created gpg: requesting key 36DFE71C from hkp server keyserver.ubuntu.com gpg: /tmp/tmpnj023s/trustdb.gpg: trustdb created gpg: key 36DFE71C: public key "Launchpad PPA for emesene leet team" imported gpg: Total number processed: 1 gpg: imported: 1 (RSA: 1) OK
