removes duplicate files, keeps the file with the longer filename

cef.rb

#!/usr/bin/ruby -w

require 'rubygems'
require 'digest/md5'

ARGV.each do |dir|
  
  hf = {}
  
  Dir["#{dir}/*"].each do |file| 
    h = Digest::MD5.hexdigest(File.read(file))
    if hf[h].nil?
      hf[h] = file
      next
    end
    
    if File.basename(hf[h]).length > File.basename(file).length
      puts "deleting #{file}"
      File.delete file
    else
      puts "deleting #{hf[h]}"
      File.delete hf[h]
      hf[h] = file
    end
  end
  
end