Homebrew - a package manager for OSX to install all those incredibly useful applications you've been using for the past 10 years.
You'll probably run across a lot of web sites recommending older package managers like MacPorts and Fink, just because they've been around for a long time.
YMMV, but I (and many others) find Homebrew superior in every respect.
This means that if apple changes the binary in the OS, you don't risk breaking the dependency tree.
If there's a way to do this in homebrew, please let me know! I'd like to switch over, and this is the one thing keeping me with macports.
Make sure to install XCode from the App Store and then goto XCode->Preferences->Downloads and install the "Command Line Tools".
Is this documented somewhere or alternatively how can I inspect the downloaded archive to learn about its content?