python expect模块pexpe

 wget http://pexpect.sourceforge.net/pexpect-2.3.tar.gz
 tar xzf pexpect-2.3.tar.gz
 cd pexpect-2.3
 sudo python ./setup.py install

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# filename: pexpect_test.py
'''
Created on 2010-7-2
 
@author: forever
'''
import pexpect
 
if __name__ == '__main__':
    user = 'http://www.pythonclub.org'
    ip = '192.168.0.200'
    mypassword = 'forever'
 
    print user
    child = pexpect.spawn('ssh %s@%s' % (user,ip))
    child.expect ('password:')
    child.sendline (mypassword)
 
    child.expect('$')
    child.sendline('sudo -s')
    child.expect (':')
    child.sendline (mypassword)
    child.expect('#')
    child.sendline('ls -la')
    child.expect('#')
    print child.before   # Print the result of the ls command.
    child.sendline("echo '112' >> /home/forever/1.txt ")
    child.interact()     # Give control of the child to the user.
 
    pass