From: Stefano Crocco <stefano.crocco@...>
Date: 2007-03-15T00:37:49+09:00
Subject: Re: Copying files and changing their names

Alle mercoled狸 14 marzo 2007, SamF ha scritto:
> Hi all,
>
> I have a directory with numerous folders, each of which contains
> numerous folders and/or files.
>
> Each of the files in each of these folders has a number. I want to
> iterate through all these files, and, for every file that ends in a
> '[filename]-9', I want to COPY the file and rename it
> '[filename]-final'.
>
> Is there a simple way to do this in Ruby?
>
> Any help much appreciated!
> Sam

NOT TESTED - make a trial with some useless directory before using it on real 
data

require 'find'
require 'fileutils'

Find.find('.') do |f|
 FileUtils.cp(f,f.sub(/-9$/, '-final')) if File.file?(f) and f.match /-9$/)
end

Find.find calls the block passing the name of each file or directory it 
contains, recursively. In the block, we use the FileUtils.cp method to copy f 
to the file whose name is obtained by rmoving the final -9 and adding -final, 
but only if the name is the name of a file (not of a directory) and if the 
name ends with -9.

I hope this helps

Stefano