Harddrive cleanup/application removal
I was having problems with my computer because of a full hard drive. It runs Fedora Core 4, x86 archetecture, 20gb main harddrive, 20g FAT secondary drive (from an old win 98 install I never use). I deleted a big iso file i don't need to give myself some time, but I need to cut down on other files on my drive. I did clear my /tmp folder. My main problem is with applications i've installed. Mostly, the programs i've added are from running rpm files or compiling tarballs, and i've lost track of what i've installed, and i have no clue where they put all their files. Is there any good way to find all these unused programs and get rid of them? I know i can check my PATH, but I also want to be sure to get rid of configuration files these programs may have created. I'd rather not reinstall if possible.
Thanks for any help in advance.