# Pastebin HOHJ0QYY
austin@Austin-Desktop:~$ sudo grep ports /etc/apt/sources.list{,.d/}
[sudo] password for austin: 
/etc/apt/sources.list:## Also, please note that software in backports WILL NOT receive any review
/etc/apt/sources.list:deb http://us.archive.ubuntu.com/ubuntu/ vivid-backports main restricted universe multiverse
/etc/apt/sources.list:deb-src http://us.archive.ubuntu.com/ubuntu/ vivid-backports main restricted universe multiverse
grep: /etc/apt/sources.list.d/: Is a directory