1. The problemSo, you are on a specific directory, but would like to execute a git command on a different one.
I don't know whyl for me, it's just only that I'm lazy.
2. The solutionHere is your command's format
git -C [directory] [git_command]
And here is a screenshot to make things more clear:
3. The referenceFurther reference: https://stackoverflow.com/a/20115753/2486904