自动化从mac到iPhone的ssh(Automate ssh from mac to iPhone)

 我正在开发一个iOS工具，它基于shell脚本，将各种东西推送到设备，然后根据设备上推送的内容执行各种操作。 
 
 在这种情况下，该设备将成为一个越狱的iPhone。 我想从mac连接到它..所以，我使用“usbmux”ssh over usb并且它工作得很好。 （干杯：D） 
 
 现在，问题是，我想完全自动化ssh-ing过程，假设密码是默认的'alpine'。 避免用户互动。 
 
 这就是我所尝试过的，并没有给我预期的结果。 
 
expect <<< 'spawn ssh root@localhost -p 2222; expect "*?password:*"; send "alpine\r";'
 
 我读到了ssh-keygen和其他一些选项，但它们似乎需要初始的手动交互。 请帮我完全自动化。 

I am working on a tool for iOS, it's based on shell scripts that push various stuff to the device and then performs various operations based on what's pushed on the device.
 
In this case the device is going to be a jailbroken iPhone. And I would like to connect to it from mac.. so, I have used "usbmux" to ssh over usb and it works great. (cheers :D)
 
Now, the problem is, i would like to completely automate the ssh-ing process, assuming the password is the default 'alpine'. To avoid user interaction.
 
This is what i have tried and it doesn't give me the expected outcome.
 
expect <<< 'spawn ssh root@localhost -p 2222; expect "*?password:*"; send "alpine\r";'
 
I read about ssh-keygen and few other options but they seem to require initial manual interactions. Please help me completely automate this.

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