Mock Terminal Console/Live Command Updates in Ruby on Rails

In my app, a user can run a script, and if it is run in the terminal, it shows a nice progress bar, how would I replicate thi开发者_JAVA技巧s in rails? I mean I could do like something between the two to communicate, but I would prefer if it would just show a "live" shell output.

Thanks :)

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If your script is invoked with 2>&1 at the end, backticks invocation will return STDOUT & STDERR.

result = ‘ls 2>&1‘