This guide intends to be a progressive introduction going from beginner’s usage (understanding what a commit is, handling branches), to intermediate usage (writing clean commits and being able to manipulate the commits history) and hopefully advanced usage. It takes a “learn the hard way” path: it only makes use of the command line and exposes some internals. This could be seen as an engineering failure, however git internals are pretty quick to cover and git is a very good example of how very few low-level objects can offer powerful high-level actions.
