From: Michael Neumann <neumann@...>
Date: 2001-10-26T03:38:09+09:00
Subject: [ruby-talk:23330] Re: Newbie seeks %x{...} help

Brian Baker wrote:
> I am trying to dynamically generate commands as strings
> and then execute them in Ruby and collect the output.
> However Ruby treats the specified command literally,
> so if I build a command with
> 
> command = "echo test"
> result = `command`
>

You can substitute any expression in back tick strings as you can 
do in "normal" strings using #{ expression }. 

  command = "echo test"
  result = `#{ command }`

But you can also use method system:

  command "echo test"
  result = system(command)

Regards,

  Michael


-- 
Michael Neumann
merlin.zwo InfoDesign GmbH
http://www.merlin-zwo.de