gistfile1.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'spotlight'
require 'fileutils'

include FileUtils::Verbose

if ARGV.size < 2
  warn "usage: {$0} /path/to/foo.savedSearch /path/to/dest_dir [ln | mv | cp | ln_s]"
  exit 1
end

saved_search, dest_dir, behavior = ARGV

behavior = 'ln_s' unless behavior
unless File.exists?(dest_dir)
  mkdir_p dest_dir
end

query = Spotlight::Query.from_saved_search(saved_search)
query.execute.each do |item|
  path = item.get(:kMDItemPath)
  unless File.exists?(File.join(dest_dir, File.basename(path)))
    send(behavior, path, dest_dir) if File.file?(path)
  end
end