FinkCommander
Recipe for easy use and management of Open-Source Unix apps on OSX:
Download and install the Apple Developer Kit. It’s a pretty hefty install at around 500MB, but you’ll need it for the Darwin C compiler, cc.
Download and install X11 for OSX.
Download and install the OroborOSX window manager.
Download and installFink.
5. Finally, download and install FinkCommander.
FinkCommander is an excellent, indispensible GUI interface for the command-line Fink package manager. It allows you to update your installed Unix packages at the touch of a button, and to search for new packages by name or by keyword.
If you’re interested in what Open Source has to offer, this is an excellent way to dive in.