Find duplicate Files (file < 4G)

DuplicateFiles.rb

#!/usr/bin/env ruby 
# Usage
# ruby DumpFiles.rb ~/$DirPath
require 'digest/md5'
require 'find'


path = ARGV[0]
path = './' if !path

dict = {}
Find.find(path) do |f|

		if File.file?(f) && f =~ /.*\.*/
			checksum = Digest::MD5.hexdigest(File.read(f))\
			print "checking: ", f, "\n" 
		if dict.has_key?(checksum)
			dict[checksum] = dict[checksum].push(f)
		else
			dict[checksum] = [f]
		end 
	end
end

dict.each do |k, v|
	print v, "\n" if v.count > 1
end