code: def df(self, src):
          '''Perform ``df`` on a path'''
          return self._getStdOutCmd([self._hadoop_cmd, 'fs', '-df', self._full_hdfs_path(src)], Truef df(self, src):
          '''Perform ``df`` on a path'''
          return self._getStdOutCmd([self._hadoop_cmd, 'fs', '-df', self._full_hdfs_path(src)], True)
docs: Perform ``df`` on a path