Question

即使登录成功或登录失败，我也无法使用以下脚本。

我可以使用哪些正则表达式来接受下面的所有提示？
```
router1>;
router3>; 
router4#
```
如何使用正则表达式，我可以在“失败”之前和“失败”提示之后看到所有文本，然后在结束时我会得到＆gt;＆gt;＆gt; “许可被拒绝

Current failed Login: ########
User Access Verification
Username: asdsad
Password:
% Authentication failed
Current Successful Login ###########
[root@localhost testuserpass]# telnet 192.168.1.31
Trying 192.168.1.31...
Connected to 192.168.1.31.
Escape character is '^]'.
User Access Verification
Username: admin
Password:
testname&gt;
testname&gt;
testname&gt;
testname&gt;
testname&gt;

我的脚本################

有关Cisco路由器telnet登录正则表达式的问题

#! /usr/bin/python

import pexpect
import getpass

HOST = "192.168.1.31"
user = raw_input("Enter your remote account: ")
password = getpass.getpass()
child = pexpect.spawn ('telnet '+HOST)
child.expect ('Username: ')
child.sendline (user)
child.expect ('Password: ')
child.sendline (password)

//// ######I just can't get below part to work. 
i = child.expect (['*Authentication*', 'Terminal type', '[#\$&gt;] '])

if i==0:
    print('Permission denied on host. Can\'t login')
    child.kill(0)
    print child.readline()
elif i==1:
    print('Login OK... need to send terminal type.')
    child.sendline('vt100')
    child.expect('[#\$] ')
    print child.readline()
elif i==2:
    print('Login OK.')
    print('Shell command prompt', child.after)
    print child.readline()

Answer 1

我也在努力处理许多不同的脚本应用程序，但最终找到了可以顺利处理脚本的PrettyGoodTerminal。它专门设计用于编写Cisco路由器的脚本，因此您也可能会发现它很有用

使用Python期望脚本Telnet到多个cisco路由器

1 个答案: