def dfs(command=None, *args):
 if command:
  return _hadoop_cmd('dfs', command, *args)
 else:
  return 'Error: command must be provided'

def dfs ( command = None , * args ) : if command : return _hadoop_cmd ( 'dfs' , command , * args ) else : return 'Error: command must be provided'
execute a command on dfs cli example: .