ubuntu@ubuntu:~$ sudo cat /etc/apt/sources.list
deb cdrom:[Ubuntu 12.10 _Quantal Quetzal_ - Release i386 (20121017.2)]/ quantal main restricted
deb http://archive.ubuntu.com/ubuntu/ quantal main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu/ quantal-security main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ quantal-updates main restricted universe multiverse

ubuntu@ubuntu:~$