I need to create 1500+ ruby files from a template for some testing I'm doing with Selenium.

The template looks like this:

```
class $CLASS_NAME

require "spec"

attr_accessor :title

include Spec::Example::ExampleGroupMethods
include Spec::Matchers

def initialize  
  @title = "$OLD_URL -> $NEW_URL"
end

def execute(selenium)
  selenium.open "$OLD_URL"
  sleep 1
  puts 'Opening...'
  sleep 1
  url = selenium.get_location
  puts 'Grabbing location...'
  sleep 1
  puts 'The URL is ' + url 
  puts 'Doing match...'
  sleep 1
  /$NEW_URL/.match(url).should_not be nil

  puts "\n##### Success! #####\n\r"

end # execute

```

I have a load of URL's I need to insert - one into each file, replacing '$OLD\_URL' and '$NEW\_URL'.

Is there anyway to do something like this?

> 
> x = 0  
> 
>  while (x < 1500)  
> 
>  {  
> 
>  open template.rb  
> 
>  find all instances of $CLASS\_NAME and replace with xxx from classnames.txt  
> 
>  find all instances of $OLD\_URL and replace with xxx from listofurls.csv  
> 
>  find all instances of $NEW\_URL and replace with xxx from listofurls.csv  
> 
>  save file as ('redirect\_' + 'x++')  
> 
>  x++  
> 
>  }
> 
> 
>