expect 求教

Trofish

大神好。

我在写一个脚本，希望通过交互式模式，先登录一台跳板机，再从跳板机登录到内网交换机，并采集交换机上的命令行配置。

用expect：


[root@rhel6 /]# vim abc.sh

#!/usr/bin/expect -f
set timeout 10

#登录跳板机
spawn ssh yonghu@10.10.10.75
expect "Password:"
send "mypass"
expect "press Enter to continue..."
send "\r"

#采集交换机数据
expect "Select page:"
send "10.3.0.1"                #登录该主机
expect "Username:"       
send "user1\r"                #登录用户名
expect "Password:"
send "pass1\r"                #密码
expect "switch>"          #普通用户模式
send "enable\r"                #进入特权模式
expect "Password:"
send "pass1\r"
expect "switch#"        #进入到特权模式

send "show run"             -------------我需要将此处show run命令的输出导出到某文件，就类似于 cat a.txt >b.txt一样，请教这个语法咋破？

sync_1521

expect 里面有个 log_file 文件 的用法，但是貌似是记录整个expect的标准输出

测试1106

看上去好高深的样子

tc1989tc

show run  后面输出有特征标志没有 如果有可以考虑有正则匹配后 抓取到 expect_out(0,string)

Upon  matching  a pattern (or eof or full_buffer), any matching and previously unmatched output is saved in the vari-
             able expect_out(buffer).  Up to 9 regexp substring matches are saved in the  variables  expect_out(1,string)  through
             expect_out(9,string).   If  the  -indices  flag  is used before a pattern, the starting and ending indices (in a form
             suitable for lrange) of the 10 strings are stored in the variables expect_out(X,start) and expect_out(X,end) where  X
             is  a  digit, corresponds to the substring position in the buffer.  0 refers to strings which matched the entire pat-
             tern and is generated for glob patterns as well as regexp patterns.  For example, if a process has produced output of
             "abcdefgh\n", the result of:

                 expect "cd"

             is as if the following statements had executed:

                 set expect_out(0,string) cd
                 set expect_out(buffer) abcd

             and "efgh\n" is left in the output buffer.  If a process produced the output "abbbcabkkkka\n", the result of:

                 expect -indices -re "b(b*).*(k+)"

waker

1. 
   
2. ...........
   
3. send "show run"
   
4. set showrun $spawn_id
   
5. spawn -open [ open b.txt a+ ]
   
6. interact -u $showrun
   

复制代码

seanking1987

交换机可以写文件记录吗？

如有可以可以考虑将show run > file.txt

再将file.txt文件copy回来