unzip.rb

# Thanks to http://www.markhneedham.com/blog/2008/10/02/ruby-unzipping-a-file-using-rubyzip/
require 'zip/zip'
 
def unzip_file(file, destination)
  files = Zip::ZipFile.open(file) do |zip_file|
   zip_file.each do |f|
     f_path=File.join(destination, f.name)
     FileUtils.mkdir_p(File.dirname(f_path))
     zip_file.extract(f, f_path) unless File.exist?(f_path)
   end
  end
  files.collect! { |f| "./#{f.name}" }
end


unzipped_files = unzip_file('cats.zip', './cat_files/')