tcp端口检测

# 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

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