# File lib/bee_task_default.rb, line 239
      def ln(parameters)
        params_desc = {
          :old => { :mandatory => true, :type => :string },
          :new => { :mandatory => true, :type => :string }
        }
        check_parameters(parameters, params_desc)
        old = parameters[:old]
        new = parameters[:new]
        files = Dir.glob(old)
        files = files.first if files.length == 1
        puts "Linking #{files.length} file(s) to '#{new}'"
        begin
          FileUtils.ln_s(files, new)
        rescue
          error "Error making the link: #{$!}"
        end
      end