How to uninstall software?

[Neal Wilkinson]

I've not had much trouble installing software but now I want to take
some off and don't know how. It wasn't done with Yum or with the package
manager so it isn't clear to me how to remove it. I guess there must be
about as many ways to remove a program as there are to put it on. Anyone
know of something that works for everything or without instructions
should I just try different things until one works?