From: Phillip Gawlowski <cmdjackryan@...>
Date: 2011-07-14T06:06:36+09:00
Subject: Re: Creating a range of directories

On Wed, Jul 13, 2011 at 10:55 PM, Simon Harrison
<simon@simonharrison.net> wrote:
> The following works, but seems to smell a bit.
>
> ***************************
>
> require 'fileutils'
> include FileUtils
>
> var = 1..100
> dirs = var.map { |n| "%03d" % n }
> dirs.each { |n| n.insert(0, "Prefix-") }
>
> mkdir(dirs)
>
> ****************************
>
> Any better ways to accomplish this?

require 'fileutils'

(1..100).each do |num|
  FileUtils.mkdir("prefix-%03d", num)
end

Note: I've only proven the code correct, not tested it.

-- 
Phillip Gawlowski

twitter.com/phgaw
phgaw.posterous.com

A method of solution is perfect if we can forsee from the start,
and even prove, that following that method we shall attain our aim.
               -- Leibniz