def validate
			@folders.each do |item|
        if(item==nil) || (item=="") || !Dir.exists?(item)
          puts "a valid folder path is required as argument #{item}"
          exit
        end
      end
		end
def validate
			@folders.each do |item|
        if(item==nil) || (item=="") || !Dir.exists?(item)
          puts "a valid folder path is required as argument #{item}"
          exit
        end
      end
		end
the container for the files that could not be processed
initialize the class with the folders to be processed
 Validates the supplied folders ensuring they exist