Ruby version and gemset in your Bash prompt? Yes sir!

RVM is an easy way to switch between different ruby implementations and gemsets. If you don’t know about it, go check it out. If you do know about, you’ll know how annoying it is never to know which ruby version and gemset you’re currently using. Here is a nice .profile hack that shows your current ruby version and optional gemset in your prompt. Firstly, add the following function to your ~/.