#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2019/05/23 20:04
# @Author  : niuliangtao
# @Site    : 
# @File    : test.py
# @Software: PyCharm

import os

val = os.system('cd /content/tmp//data/electronics/ && ls -al')
print(val)
