def parse
      opts = OptionParser.new(&method(:set_options))
      opts.parse!(@args)
      return process_url if url_present?
      opts.help
    end
def parse
      opts = OptionParser.new(&method(:set_options))
      opts.parse!(@args)
      return process_url if url_present?
      opts.help
    end
Parses the command-line arguments and runs the executable
 @return [String] The short url or argument passed