#!/usr/bin/env python

import paramiko

if __name__ == '__main__':

from optparse import OptionParser

parser = OptionParser()

parser.add_option('-l','--hostname',dest='hostname',default='localhost',help='host for server')

parser.add_option('-u','--username',dest='username',default='root',help='username for server')

parser.add_option('-w','--passwd',dest='passwd',default='root',help='password for server')

parser.add_option('-p','--port',dest='port',type='int',default='22',help='port for server')

(options,args) = parser.parse_args()

print 'options:%s,args:%s' % (options,args)

paramiko.util.log_to_file('paramiko.log')

s = paramiko.SSHClient()

s.load_host_keys('/root/.ssh/known_hosts')

s.connect(options.hostname,options.port,options.username,options.passwd)

stdin,stdout,stderr = s.exec_command('ifconfig')

print stdout.read()

s.close()