使用SSH连接中的Expect脚本，无法发送密码命令 [英] Send command for password doesn't work using Expect script in SSH connection

问题描述

我希望能够使用Expect脚本通过SSH连接远程登录到路由器，

I want to be able to log in remotely to the router using an SSH connection using an Expect script, and this is what I have:

#!/usr/bin/expect

set host "192.168.1.50"

set user "root"

set password "mypass"

spawn ssh "$user\@host"

expect "word:"

send "$password\r"

当我尝试使用该路由器时，路由器变得无响应(并可能超时).当进入密码提示行时，它立即退出.

When I tried to use that, the router became unresponsive (and possibly timed out). When it went to password prompt line, it immediately went back out.

我使用SSH密钥通过手动键入是"来进行身份验证.当它提示我是/否"时我第一次登录时会提出疑问.然后，在第一次尝试后，路由器会自动提示我输入密码.确切地说，它有两行:

I did authentication using my SSH key by manually typing "yes" when it prompted me with "yes/no" questions the first time I logged in. Then, after the first try, the router just automatically prompted me with the password. To be exact, it has two lines:

User Authentication
Password:

然后几秒钟后，它又回到了我的根目录，好像send命令在该密码提示后没有发送任何内容.

Then after a couple of seconds, it went back to my root as if the send command did not send anything after that password prompt.

因此，我对我的Expect和脚本的了解非常有限，我的问题是:对此有什么解决方案?怎么了?

So, my question, with my very limited knowledge about Expect and scripting in general, is: What is the solution for this? What was wrong?

推荐答案

我遇到了这个确切的问题，即我无法拾取" expect中断的地方，我认为这将是默认行为

I had this exact problem where I wasn't able to "pick up" where expect left off, which I thought was going to be the default behavior.

就像@glennjackman在评论中说的那样，在末尾添加interact可以让您从上次中断的地方继续学习.

As @glennjackman said in the comments, adding interact at the end allows you to pick up where it left off.

#!/usr/bin/expect
set host "192.168.1.50"
set user "root"
set password "mypass"
spawn ssh "$user\@host"
expect "word:"
send "$password\r"
interact

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