optparse in python with example

import  optparse

parser=optparse.OptionParser('usage %prog -H <target ip> -p <target pot>')
parser.add_option('-H',dest='ip',type='string',help='specify target host')
parser.add_option('-p',dest='port' ,type='int' ,help='specify target port')
(options,args)=parser.parse_args()
ip=options.ip;
port=options.port
print "host : "+str(ip)
print "ip : "+str(port)


important  points:



dest:=   like as variable in which our value save.
type:=   which type of value we can  save (dest='')


OUTPUT:

save  this  program parser.py name 
then open cmd   go to the directory  where you save this  program and then type:

python parser.py -H 192.168.1.100 -p 21