python获取命令行输出结果，并对结果进行过滤找到自己需要的！
这里以获取本机MAC地址和IP地址为例！
# coding: GB2312
import os, re
# execute command, and return the output
def execCmd(cmd):
r = os.popen(cmd)
text = r.read()
r.close()
return text
# write "data" to file-filename
def writeFile(filename, data):
f = open(filename, "w")
f.write(data)
f.close()
# 获取计算机MAC地址和IP地址
if __name__ == '__main__':
cmd = "ipconfig /all"
result = execCmd(cmd)
pat1 = "Physical Address[\. ]+: ([\w-]+)"
pat2 = "IP Address[\. ]+: ([\.\d]+)"
MAC = re.findall(pat1, result)[0]# 找到MAC
IP = re.findall(pat2, result)[0]# 找到IP
print("MAC=%s, IP=%s" %(MAC, IP))
运行结果：
E:\Program\Python>del.py
MAC=00-1B-77-CD-62-2B, IP=192.168.1.110
E:\Program\Python>