Is there a way to list all non-free and contrib software installed in Debian via apt?
/etc/apt/sources.list is as follows
deb http://ftp.us.debian.org/debian/ wheezy main non-free contrib deb-src http://ftp.us.debian.org/debian/ wheezy main non-free contrib deb http://security.debian.org/ wheezy/updates main non-free contrib deb-src http://security.debian.org/ wheezy/updates main non-free contrib # wheezy-updates, previously known as 'volatile' deb http://ftp.us.debian.org/debian/ wheezy-updates main deb-src http://ftp.us.debian.org/debian/ wheezy-updates main I added non-free and contrib years ago because I needed a non-free driver for my video-card, which has now been replaced with a new one that doesn't require a non-free driver. I'd like to get rid of the non-free stuff, but I'm afraid I might have installed other non-free software over the years which I cannot afford to uninstall.