Answer by Tadeck for How do I get the current branch name in Git?

You can just type in command line (console) on Linux, in the repository directory:

$ git status

and you will see some text, among which something similar to:

...On branch master...

which means you are currently on master branch. If you are editing any file at that moment and it is located in the same local repository (local directory containing the files that are under Git version control management), you are editing file in this branch.