Any experience with 'systemu'?

From my rails application I am looking to do the following:

  • run a saved ruby file, e.g. program.rb
    -read anything that this program may output
    -detect if the program is waiting for input, then write to the program
    -report any errors when the program has finished running

so basically i would like my rails application to simulate a command
shell. I think i may need to use the gem ‘systemu’. Any help on this
would be very much appreciated. Thanks


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