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MACIP = re.findall(pat2, result)[0]		# 找到IPprint("MAC=%s, IP=%s" %(MAC, IP))

运行结果：

E:\Program\Python>del.py
MAC=00-1B-77-CD-62-2B, IP=192.168.1.110E:\Program\Python>