$ grep -vr  "^#" /etc/apt/sources.list{,.d/}
/etc/apt/sources.list:
/etc/apt/sources.list:deb http://us.archive.ubuntu.com/ubuntu/ trusty main restricted
/etc/apt/sources.list:deb-src http://us.archive.ubuntu.com/ubuntu/ trusty main restricted
/etc/apt/sources.list:
/etc/apt/sources.list:deb http://us.archive.ubuntu.com/ubuntu/ trusty-updates main restricted
/etc/apt/sources.list:deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates main restricted
/etc/apt/sources.list:
/etc/apt/sources.list:deb http://us.archive.ubuntu.com/ubuntu/ trusty universe
/etc/apt/sources.list:deb-src http://us.archive.ubuntu.com/ubuntu/ trusty universe
/etc/apt/sources.list:deb http://us.archive.ubuntu.com/ubuntu/ trusty-updates universe
/etc/apt/sources.list:deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates universe
/etc/apt/sources.list:
/etc/apt/sources.list:deb http://us.archive.ubuntu.com/ubuntu/ trusty multiverse
/etc/apt/sources.list:deb-src http://us.archive.ubuntu.com/ubuntu/ trusty multiverse
/etc/apt/sources.list:deb http://us.archive.ubuntu.com/ubuntu/ trusty-updates multiverse
/etc/apt/sources.list:deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates multiverse
/etc/apt/sources.list:
/etc/apt/sources.list:deb http://us.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
/etc/apt/sources.list:deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
/etc/apt/sources.list:
/etc/apt/sources.list:deb http://security.ubuntu.com/ubuntu trusty-security main restricted
/etc/apt/sources.list:deb-src http://security.ubuntu.com/ubuntu trusty-security main restricted
/etc/apt/sources.list:deb http://security.ubuntu.com/ubuntu trusty-security universe
/etc/apt/sources.list:deb-src http://security.ubuntu.com/ubuntu trusty-security universe
/etc/apt/sources.list:deb http://security.ubuntu.com/ubuntu trusty-security multiverse
/etc/apt/sources.list:deb-src http://security.ubuntu.com/ubuntu trusty-security multiverse
/etc/apt/sources.list:
/etc/apt/sources.list:
/etc/apt/sources.list:deb http://extras.ubuntu.com/ubuntu trusty main
/etc/apt/sources.list:deb http://download.ebz.epson.net/dsc/op/stable/debian/ lsb3.2 main
/etc/apt/sources.list:deb-src http://extras.ubuntu.com/ubuntu trusty main