In my experience, it is unpredictable and a beard for commercial developers to hock their wares. Barely a quasi-package manager, it is not nearly as useful or reliable as real package managers like pkgsrc, FreeBSD ports, aptitude, RPM, macports or even softwareupdate. The App Store is simply not suitable for administration. Just open Terminal.app, and follow along! Happy Administrating! These instructions are for use in /Applications/Utilities/Terminal.app Please note, I have merely copied verbatim my answer from here and added a clip from here
