    # File lib/chef/knife/data_bag_from_file.rb, line 71
          def run
            if config[:all] == true
              load_all_data_bags(@name_args)
            else
              if @name_args.size < 2
                ui.msg(opt_parser)
                exit(1)
              end
              @data_bag = @name_args.shift
              load_data_bag_items(@data_bag, @name_args)
            end
          end