From: Jim Freeze <jim@...>
Date: 2003-08-26T02:46:20+09:00
Subject: Re: Ruby launching system apps?

On Tuesday, 26 August 2003 at  2:25:04 +0900, Dan wrote:
> I have a UNIX machine and I want a ruby app that can launch UNIX commands
> like awk or sed...how would I implement this?
> 
> use Shell.new?


Either

  `sys cmd here`
  or
  system("sys cmd here")


  The backticks `` capture the output return it as a string.
  The system command returns sucess or failure.

ri system
This is a test 'ri'. Please report errors and omissions
on http://www.rubygarden.org/ruby?RIOnePointEight

--------------------------------------------------------- Kernel::system
     system( aCmd [, args]* ) -> true or false
------------------------------------------------------------------------
     Executes aCmd in a subshell, returning true if the command was
     found and ran successfully, false otherwise. An error status is
     available in $?. The arguments are processed in the same way as for
     Kernel::exec on page 419.
        system("echo *")
        system("echo", "*")
     produces:
        config.h main.rb
        *




-- 
Jim Freeze
----------
"I used to think that the brain was the most wonderful organ in my
body.  Then I realized who was telling me this."
		-- Emo Phillips