working tree. After running `git add hello.c; rm hello.c`, you will _not_
see `hello.c` in your working tree with the former, but with the latter
you will.
++
+Just as the filesystem '.' (period) refers to the current directory,
+using a '.' as a repository name in Git (a dot-repository) is a relative
+path for your current repository.
Here are the rules regarding the "flags" that you should follow when you are
scripting Git: