Locate dupes in the batch file tags.

find_dupes.rb

require 'FileUtils'

tag_files = {}
Dir.glob( './upload/*.tag' ).each do |file|
  name = File.basename file, '.tag'
  fields = name.split '_'
  name = fields[fields.length - 1]
  tag_files[name] = [] if tag_files[name].nil?
  tag_files[name] << file
end

tag_files.sort.each do |name, files|
  if files.length > 1
    puts name
    count = 0
    files.each do |file|
      count += 1
      puts "  #{File.basename file}"
      FileUtils.cp file, "./#{File.basename file}" if count == 1
    end
  end
end