I have been learning to use Terminal to install packages (particularly to learn Ruby development). I believe that I'm experiencing some conflicts with things that have been installed and would like to remove them. The issue is, during my trial and error, forgot everything that was installed.
QUESTION: Is there a way to list out anything that has been installed through Terminal? And what is the best way to remove those items? I assume they need to be uninstalled individually or I would have to a complete reset for OSX.
Any guidance would be appreciated. Thank you.