$ egrep -v '^#|^ *$' /etc/apt/sources.list /etc/apt/sources.list.d/*
/etc/apt/sources.list:deb http://de.archive.ubuntu.com/ubuntu/ utopic main restricted universe multiverse
/etc/apt/sources.list:deb-src http://de.archive.ubuntu.com/ubuntu/ utopic main restricted universe multiverse #Added by software-properties
/etc/apt/sources.list:deb http://de.archive.ubuntu.com/ubuntu/ utopic-updates main restricted universe multiverse
/etc/apt/sources.list:deb-src http://de.archive.ubuntu.com/ubuntu/ utopic-updates main restricted universe multiverse #Added by software-properties
/etc/apt/sources.list:deb http://extras.ubuntu.com/ubuntu utopic main
/etc/apt/sources.list:deb-src http://extras.ubuntu.com/ubuntu utopic main
/etc/apt/sources.list:deb http://security.ubuntu.com/ubuntu utopic-security main restricted universe multiverse
/etc/apt/sources.list:deb-src http://security.ubuntu.com/ubuntu utopic-security main restricted universe multiverse #Added by software-properties
/etc/apt/sources.list.d/debug_symbols.list:deb [arch=i386,amd64] http://ddebs.ubuntu.com trusty main restricted universe multiverse #Debug Symbols
/etc/apt/sources.list.d/debug_symbols.list:deb [arch=i386,amd64] http://ddebs.ubuntu.com trusty-updates main restricted universe multiverse #Debug Symbols
/etc/apt/sources.list.d/debug_symbols.list:deb [arch=i386,amd64] http://ddebs.ubuntu.com trusty-security main restricted universe multiverse #Debug Symbols
/etc/apt/sources.list.d/debug_symbols.list:deb [arch=i386,amd64] http://ddebs.ubuntu.com trusty-proposed main restricted universe multiverse #Debug Symbols
/etc/apt/sources.list.d/mc3man-trusty-media-trusty.list.distUpgrade:deb http://ppa.launchpad.net/mc3man/trusty-media/ubuntu trusty main