python 执行shell命令

def shell_cmd(cmd):
    print('$ ' + cmd)
    p = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
    stdout, stderr = p.communicate()
    return p.returncode, stdout, stderr

来源：oschina

链接：https://my.oschina.net/redhands/blog/3157551