From: "Peña, Botp" <botp@...>
Date: 2007-01-30T12:25:37+09:00
Subject: Re: Run other programs

From: Harry [mailto:ruby.hardware@gmail.com]: 
# From Jonathan Denni <jonsdenni@gmail.com>:
# > lets say I have three programs
# >
# > Main.rb
# > Sub1.rb
# > and
# > Sub2.rb
# >
# > When I run Main.rb, I want it to access and run the other two ruby
# > programs. How do I do this?
# >
# 
# If you just want to run them one at a time and wait, you can do this;
# 
# trya.rb
# puts "a"
# sleep 3
# system("ruby tryb.rb")
# system("ruby tryc.rb")
# sleep 3
# 
# tryb.rb
# puts "b"
# sleep 3
# 
# tryc.rb
# puts "c"

Just in case, he's not familiar w ruby's require yet.

C:\family\ruby>cat main.rb
puts __FILE__
require 'sub1.rb'
require 'sub2.rb'

C:\family\ruby>cat sub1.rb
puts __FILE__
C:\family\ruby>cat sub2.rb
puts __FILE__
C:\family\ruby>ruby main.rb
main.rb
./sub1.rb
./sub2.rb

C:\family\ruby>qri require
------------------------------------------------------ Multiple choice

     Kernel#require, Needle::Container#require,
     Needle::DefinitionContext#require

C:\family\ruby>qri kernel#require
--------------------------------------------------------- Kernel#requi
     require(string)    => true or false
----------------------------------------------------------------------
     Ruby tries to load the library named _string_, returning +true+ i
     successful. If the filename does not resolve to an absolute path,
     it will be searched for in the directories listed in +$:+. If the
     file has the extension ``.rb'', it is loaded as a source file; if
     the extension is ``.so'', ``.o'', or ``.dll'', or whatever the
     default shared library extension is on the current platform, Ruby
     loads the shared library as a Ruby extension. Otherwise, Ruby tri
     adding ``.rb'', ``.so'', and so on to the name. The name of the
     loaded feature is added to the array in +$"+. A feature will not
     loaded if it's name already appears in +$"+. However, the file na
     is not converted to an absolute path, so that ``+require
     'a';require './a'+'' will load +a.rb+ twice.

hth
kind regards -botp