How to run a ruby program from another one

ruby-talk
1

Hi,

How can we run a a ruby program from another ruby program. I am working on one program where in i have to run another ruby program from it.
I am stuck here.

Please help.

Thanks,
Navya

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2

How can we run a a ruby program from another ruby program. I am
working on one program where in i have to run another ruby program
from it.

Hi,

Usually

  result = `other_program`

or

  system("other_program")

or

  io = IO.popen("other_program", "r") # or "w" if you want to write to it
  io.gets # ... read stdout from other_program
  ...

Regards,

Bill

···

From: "Navya Amerineni" <navyaamerineni@yahoo.com>

3

Navya Amerineni wrote:

Hi,

How can we run a a ruby program from another ruby program. I am
working on one program where in i have to run another ruby program
from it.
I am stuck here.

The easiest is to use fork with a block:

09:51:31 [~]: ruby -e 'fork { puts "#{$$}: child" }; puts "#{$$}: parent"'
1912: parent
2128: child

Kind regards

    robert