Due to a syncing problem, I lost some files. I check git status and it says: fatal: not a git repository (or any of the parent directories): .git But the .git folder still seems to be fine: ls .gi...

There seems to be a difference between the last commit, the HEAD and the state of the file I can see in my directory. What is HEAD, what can I do with it and what mistake should I avoid?

There seems to be a difference between the last commit, the HEAD and the state of the file I can see in my directory. What is HEAD, what can I do with it and what mistake should I avoid?

What do these symbols refer to and what do they mean? (I can't find any explanation in official documentation)

What do these symbols refer to and what do they mean? (I can't find any explanation in official documentation)