Python实现扫描局域网活动ip（扫描在线电脑）

#-*- coding: utf-8 -*- #author: orangleliu date: 2014-11-12 #python2.7.x ip_scaner.py  ''''' 不同平台，实现对所在内网端的ip扫描  有时候需要知道所在局域网的有效ip，但是又不想找特定的工具来扫描。 使用方法 python ip_scaner.py 192.168.1.1 (会扫描192.168.1.1-255的ip) '''  import platform import sys import os import time import thread  def get_os():   '''''   get os 类型   '''   os = platform.system()   if os == "Windows":     return "n"   else:     return "c"    def ping_ip(ip_str):   cmd = ["ping", "-{op}".format(op=get_os()),       "1", ip_str]   output = os.popen(" ".join(cmd)).readlines()      flag = False   for line in list(output):     if not line:       continue     if str(line).upper().find("TTL") >=0:       flag = True       break   if flag:     print "ip: %s is ok ***"%ip_str  def find_ip(ip_prefix):   '''''   给出当前的127.0.0 ，然后扫描整个段所有地址   '''   for i in range(1,256):     ip = '%s.%s'%(ip_prefix,i)     thread.start_new_thread(ping_ip, (ip,))     time.sleep(0.3)    if __name__ == "__main__":   print "start time %s"%time.ctime()   commandargs = sys.argv[1:]   args = "".join(commandargs)        ip_prefix = '.'.join(args.split('.')[:-1])   find_ip(ip_prefix)   print "end time %s"%time.ctime() 

D:/CodeHouse/python/tools>python ip_scaner.py 10.0.1.38 start time Wed Nov 12 18:50:58 2014 ip: 10.0.1.1 is ok *** ip: 10.0.1.2 is ok *** ip: 10.0.1.24 is ok *** ip: 10.0.1.38 is ok *** ip: 10.0.1.39 is ok *** end time Wed Nov 12 18:52:16 2014