def do_path(self, command):
        """path <interface>: shows current path of 'interface'."""
        fsi, name = self.parse_fs_command(command, nargs=0)
        if (fsi is None) or (name is None):
            return
        try:
            self.stdout.write(fsi.get_path() + "\n")
        except OperationFailure as e:
            self.stdout.write(Text("Error: {m}\n".format(m=e.message), "red"))
path <interface>: shows current path of 'interface'.
bin/mc.py