如何通过 Ruby on Rails Web 应用程序执行控制台命令行并返回结果？

Question

I have a webservice which its taks is to execute a particualr application but the application doesn't have any sort of streaming but console , so I have to find a way to redirect my requests to the console(STDOUT) and then get the results back from the output.

but I don't have any idea how can I do this in ruby on rails 1.9.

regards

Answer 1

This is a bit late, but I'll leave this here for others looking for something similar.
The simplest way, in my opinion, to execute a system command and grab its results in Ruby, is to encapsulate the system command to be executed in backticks. For example,

result = `ls -a`  #This would run `ls-a` and return its output, to our variable "result"

This article describes other ways in which we could run system commands using Ruby.