sh脚本和bash脚本

I work on a project that requires I frequently build and destroy a virtual machine.  I don't enjoy having to do so but virtual machines can be notoriously difficult to prop up, especially when you have a complex app living within it.

我从事的项目需要经常构建和销毁虚拟机。 我不喜欢这样做，但是众所周知，虚拟机很难支撑，尤其是当其中包含复杂的应用程序时。

Manually typing the same commands over and over can be mind-numbing so I've create a bash script to handle all of the work for me.  One hiccup to the process is needing to confirm removal of an existing virtual machine; using a pipe and echo allows me to answer the prompt:

一遍又一遍地手动键入相同的命令可能会让人麻木，因此我创建了一个bash脚本来为我处理所有工作。 困扰该过程的一个问题是需要确认已删除现有虚拟机。 使用管道和echo可以回答提示：

# ... some directives here# Remove the machine, confirming "y" when asked by docker-machineecho 'y' | docker-machine rm default# ... more directives here

Using echo I pipe a y response to docker-machine's confirmation prompt, thus allowing the script to move forward with other tasks without the need for manual intervention.

使用echo我将对docker-machine的确认提示的响应发送给y ，从而使脚本可以继续执行其他任务，而无需手动干预。

I don't, however, know how to handle multiple prompts -- can you tell me and everyone else?

但是，我不知道如何处理多个提示-您能告诉我和其他所有人吗？

翻译自:

sh脚本和bash脚本