Python实现的tcp端口检测操作示例_Python

本文实例讲述了Python实现的tcp端口检测操作。分享给大家供大家参考，具体如下：

									# coding=utf-8

									import sys

									import socket

									import re

									def check_server(address, port):

									  s = socket.socket()

									  print 'Attempting to connect to %s on port %s' % (address, port)

									  try:

									    s.connect((address, port))

									    print 'Connected to %s on port %s' % (address, port)

									    return True

									  except socket.error as e:

									    print 'Connection to %s on port %s failed: %s' % (address, port, e)

									    return False

									if __name__ == '__main__':

									  from argparse import ArgumentParser

									  parser = ArgumentParser(description=u'TCP端口检测')

									  parser.add_argument(

									    '-a',

									    '--address',

									    dest='address',

									    default='localhost',

									    help='address for the server')

									  parser.add_argument(

									    '-p',

									    '--port',

									    dest="port",

									    default=80,

									    type=int,

									    help='port for the server')

									  args = parser.parse_args()

									  check = check_server(args.address, args.port)

									  print 'check_server returned %s' % check

									  sys.exit(not check)

测试结果:

[hupeng@hupeng-vm Python]$python check_server.py && echo "SUCCESS"
Attempting to connect to localhost on port 80
Connected to localhost on port 80
check_server returned True
SUCCESS
[hupeng@hupeng-vm Python]$python check_server.py -p 81 && echo "Failure"
Attempting to connect to localhost on port 81
Connection to localhost on port 81 failed: [Errno 111] Connection refused
check_server returned False
[hupeng@hupeng-vm Python]$python check_server.py -p 81 || echo "Failure"
Attempting to connect to localhost on port 81
Connection to localhost on port 81 failed: [Errno 111] Connection refused
check_server returned False
Failure

附:

shell中&&和||的使用方法

命令的返回结果:真(返回0),假(返回非0)

command1 && command2: command1返回真时,command2才会被执行

command1 || command2:command1返回真时，command2就不会被执行

希望本文所述对大家Python程序设计有所帮助。

原文链接：http://www.cnblogs.com/hupeng1234/p/6715237.html