As in the title. I tried to add a Repository, how do I remove it. It won't let me via the software-sources program. I tried sudo ppa-purge ppa:quantal (the name of it) and it failed anyone got any ideas?
deb http://archive.ubuntu.com/ubuntu/ quantal main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ quantal main restricted universe multiverse #Added by software-properties
deb http://security.ubuntu.com/ubuntu/ quantal-security main restricted universe multiverse
deb-src http://security.ubuntu.com/ubuntu/ quantal-security main restricted universe multiverse #Added by software-properties
deb http://archive.ubuntu.com/ubuntu/ quantal-updates main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ quantal-updates main restricted universe multiverse #Added by software-properties
deb http://launchpad.net/ubuntu/quantal/amd64/ quantal
deb-src http://launchpad.net/ubuntu/quantal/amd64/ quantal

quantalbecause it's name of ubuntu 12.10. What is the content of sources file? – Web-E Oct 20 '12 at 10:28sources.lstfile in gedit, located at/etc/apt/– Web-E Oct 20 '12 at 10:41