python,pexpect登录ssh并

1、 安装python的Pexpect模块

wget http://jaist.dl.sourceforge.net/project/pexpect/pexpect/Release%202.3/pexpect-2.3.tar.gz

tar xzf pexpect-2.3.tar.gz

cd pexpect-2.3

python setup.py install

2、 执行脚本

可以登录到机器执行一些简单的命令等。。

#!/usr/bin/env python

# -*- coding: utf-8 -*-

import pexpect

from getpass import getpass

passwd = getpass()

def ssh_cmd(user,ip, cmd):

        ssh = pexpect.spawn('ssh %s@%s "%s"' % (user,ip,cmd))

        try:

                i = ssh.expect(['password:', 'continue connecting (yes/no)?'], timeout=5)

                if i == 0 :

                        ssh.sendline(passwd)

                elif i == 1:

                        ssh.sendline('yes')

                        ssh.expect('password: ')

                        ssh.sendline(passwd)

        except pexpect.EOF:

                print "EOF"

        except pexpect.TIMEOUT:

                print "TIMEOUT"

        else:

                r = ssh.read()

                print r

        ssh.close()

if __name__ == '__main__':

        file=open("/root/python/filelist",'r')

        a = file.read()

        file.close()

        for host in a.split("\n"):

                if host:

                        user,ip,cmd = host.split("::")

                        print "-- %s run:%s --" % (ip, cmd)

                        ssh_cmd(user,ip,cmd)

more /root/python/filelist

root::1.1.1.1::ls&&date

root::2.2.2.2::ls&&date

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