I don't understand the appeal of using a cli to manage commits, branches, remotes, merges with conflicts, and so on. To me all these things are so much better internalized and understood when presented visually. Git GUIs are aplenty (Sublime Merge being my latest discovery, SourceTree before that) and generally really good. Combined with the already amazing GitHub web GUI, it's a wonder what use case is better served…
There can be UI and sometime that's helpful, but all action contained therein will be available on cli, just because that's exactly what the UI calls.