用python代替telnet命令

python telnet.py 127.0.0.1 8080
编写 telnet.py 脚本

  1. #!/usr/local/bin/python
  2. #name  IsOpen.py
  3. import os
  4. import sys
  5. import socket
  6. #first argument
  7. host=sys.argv[1]
  8. #second argument
  9. port=int(sys.argv[2])
  10. #socket try connect
  11. def IsOpen(ip,port):
  12.     print('ip %s prot %s'%(ip,port))
  13.     s=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
  14.     try:
  15.         s.connect((ip,port))
  16.         s.shutdown(2)
  17.         print( 'IP %s,port %d is open' %(ip,port)) 
  18.         return True
  19.     except Exception,err:
  20.     print(err)
  21.         #print( 'IP %s,port %d is down' %(ip,port)) 
  22.         return False
  23. if __name__=='__main__':
  24.     IsOpen(host,port)