Fabric-如何在远程计算机上使用交互式外壳? [英] Fabric - how to use an interactive shell on remote computer?

问题描述

我正在尝试使用Fabric在远程计算机上运行命令.

I am trying to use Fabric to run commands on a remote machine.

这可以正常工作，直到远程计算机上的命令是交互式的为止.在这种情况下，Fabric返回了交互式外壳程序，但是当我尝试发送一个可以远程执行所有操作的命令时，迫使我键入所需的信息，所以我可以使该过程自动化.

This works fine, until the command on the remote machine is interactive. In that case, Fabric return the interactive shell, but force me to type the info needed, while I am trying to send a command that does everything in remote, so I can automate the procedure.

示例:

from fabric.api import *
env.hosts=['myhost.mydomain']
env.user='root'
run(test1/myapp; exectask; exit)

我在使用交互式外壳程序的远程计算机上运行cli应用程序，因此它正在等待我键入命令(exectask)；然后一旦完成，要退出，我会调用exit命令.

I run a cli application on a remote machine, that uses interactive shell, so it is waiting for me to type the command (exectask); then once done, to exit, I call the exit command.

现在发生的是，应用程序启动，Fabric向我显示了交互式UI，我仍然需要键入exectask，然后退出.

What happens now is that the app launch, Fabric show me the interactive UI and I still need to type exectask and after, exit.

我如何告诉Fabric运行该应用程序，然后将命令传递给交互式shell，然后退出以退出?

How can I tell fabric to run that app, then pass the command to the interactive shell and then the exit to quit?

我看到Fabric具有提示功能，但这是要求用户输入数据，而我只是想传递命令并返回结果.

I see that Fabric has the prompt feature, but that's to ask the user to input data, while I want to just pass the commands and get the result back.

推荐答案

您可能想研究 pexpect ，其纯Python模块的工作方式类似于 expect .本质上，它允许您的程序生成外部程序或进程，然后像对其进行交互一样对其进行控制.您可以按照程序应该看到的内容(因此而命名)进行编程，然后执行什么操作.

You might want to look into pexpect, a pure-Python module that works like expect. Essentially, it allows your program to spawn an external program or process, then control it just like a human was interacting with it. You program in what the program should expect to see (hence the name), then what action(s) to take.

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