Caveat: This was done as a quick-fix to aleviate my pain; There could be a better way to do this. Please do leave comments and suggestions.
This script is meant to be used as .bashrc, in order to make the transition from Linux to MacOS less painful. It makes available GNU tools and utils in your PATH so that they can be invoked effortlessly. It also allows you to leave an untainted terminal setup for anything very native to MacOS.