Ruby Weekly is a weekly newsletter covering the latest Ruby and Rails news. If you haven't got tab-completion and syntax coloring in your irb, you owe it to yourself to follow these instructions right away (should work for Linux, OS X, and Cygwin users). First, install the Wirble gem: sudo gem install -y wirble Next, create or edit a file called .irbrc in your home folder (~/.irbrc), and make sure