Does anyone know how to uninstall MacRuby? I was using RubyCocoa then decided to try out MacRuby, after installing MacRuby, RubyCocoa has stopped working. So I would like to remove MacRuby, but I cannot find any documentation on how to uninstall it.
I believe everything for MacRuby is installed into /Library/Frameworks/MacRuby.framework. While I haven't tried it myself, removing that directory should remove MacRuby from the system.
MacRuby shouldn't interact with RubyCocoa in such a way as to cause it to stop working. It maybe the case that something else on your system changed at about the same time as the MacRuby install.
Dj2 is right, to uninstall MacRuby:
$ rm -rf /Library/Frameworks/MacRuby.framework
$ rm /usr/local/bin/mac*
$ rm /usr/local/bin/hotcocoa
However, MacRuby and RubyCocoa can live side by side in perfect harmony ;)
The given answers won't remove everything. You'll still have XCode templates, examples and a few other dangling sym links: to rb_nibtool and the macruby man page.
To clean this up you need the .pkg file used to install MacRuby in the first place. This gives you a list of all files installed which you can delete. I did this:
$ xar -xf macruby_nightly.pkg
$ lsbom macrubynightly.pkg/Bom # not a typo, the above archive contains this folder
It would be nice if there were a better way to do this...