python执行Linux命令，返回字典

import commands

 

 

def monitor():

    shell_command = 'sar 1 3| grep "^Average:"'

    status,result = commands.getstatusoutput(shell_command)

    if status != 0:

        value_dic = {'status': status}

    else:

        value_dic = {}

        user,nice,system,iowait,steal,idle = result.split()[2:]

        value_dic['data_value'] = {

            'user': user,

            'nice': nice,

            'system': system,

            'iowait': iowait,

            'steal': steal,

            'idle': idle,

            'status': status

        }

    return value_dic

 

if __name__ == '__main__':

    print monitor()

 

 

结果为：

{'data_value': {'status': 0, 'iowait': '0.67', 'system': '0.34', 'idle': '98.66', 'user': '0.00', 'steal': '0.34', 'nice': '0.00'}}