From: Victor Reyes <victor.reyes@...>
Date: 2008-07-22T03:35:33+09:00
Subject: How to invoke an external program and get anything the pgm returns back

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Team,

I have a Ruby script which might invoke an external program.
The external program could be written in: Ruby, Perl, KSH, CSH, BSH, Etc.
The invoked program might return a value in the the form of a return code.
For example, a KSH script might execute an *exit 99* stmt and which value I
would like to capture in the invoker, Ruby script.

I tried:
Ruby script segment:
      rc = `/usr/local/bin/script_name`

I also tried in the Ruby caller script:
     system("/usr/local/bin/script_name")



KSH:
exit 99

But *rc* does not have anything of value. It has either *true* or *false*.
========================

Also, using Ruby to Ruby I still can't get a Ruby script called another Ruby
script, have the called script returns a value and have the invoker Ruby
script get the value.

Is there anyway to get what I described above?

Thank you

Victor

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