使用 expect 脚本多个 ssh 到 cisco 路由器

Question

我不是一个铁杆脚本专家，但是尝试 learn.I 刚开始使用 expect 脚本来在 cisco 上自动执行任务 router.Please 温柔一点，在右边轻推我 direction.I 会之后做相应的研究。

要求：在单个 expect 脚本中为 2 个不同的 cisco 路由器生成 2 个 ssh 会话，并在每个路由器上运行独特的命令。

当前方法：我用一个普通的expect脚本来调用这个bash script.I可以用两个expect脚本来实现要求，但是我想用一个expect脚本来做到这一点。

示例： # 设置变量设置路由器 1 [lindex $argv 0] 设置路由器 2 [lindex $argv 1] 设置用户名 [lindex $argv 2] 设置密码 [lindex $argv 3]

spawn ssh -o StrictHostKeyChecking=no $username\@$router1

expect "*assword"
send "$enablepassword\n"
expect "#"
send "command on router1"
expect "#"

close

#i want to close this ssh session and spawn ssh process to router2


spawn ssh -o StrictHostKeyChecking=no $username\@$router2 
#i tried this     simply in the same script and it doesn't work,mostly      because #it is not correct 

expect "*assword"
send "$enablepassword\n"
expect "#"
send "command on router2"
expect "#"

Answer 1

我认为您应该使用 spawn_id 全局变量，它有助于与多个 ssh 或 telnet 会话进行交互。您的代码应如下所示：

spawn ssh -o StrictHostKeyChecking=no $username\@$router1
set R1 $spawn_id
expect -i $R1 "*assword"
send -i $R1 "$enablepassword\n"
expect -i $R1 "#"
send -i $R1 "command on router1"
expect -i $R1 "#"
send -i $R11 "exit\r"


spawn ssh -o StrictHostKeyChecking=no $username\@$router2 
set R2 $spawn_id

expect -i $R2 "*assword"
send -i $R2 "$enablepassword\n"
expect -i $R2 "#"
send -i $R2 "command on router2"
expect "#"

使用 expect 脚本多个 ssh 到 cisco 路由器

multiple ssh to cisco routers using expect script

bash

ssh

expect

router

cisco