One can read any amount of similar articles, but if they don't understand the data model behind all this, git will remain a complex and fragile beast for them.

One can read any amount of similar articles, but if they don't understand the data model behind all this, git will remain a complex and fragile beast for them. The feature-set is huge to be able to just remember all possible commands for all possible scenarios. If you don't know what index is or what a branch is, this all will look like a bunch of nonsense. On the other hand - your ruby code won't seem too logical either if you don't know the language. So if git is the tool you use to get your job done - don't hesitate to spend a day or 2 on reading how it works and how you're supposed to use it.