# File lib/ezprint/processors/prince.rb, line 13
      def self.cmd(options)
        stylesheets           = options.delete(:stylesheets)
        prince_cmd            = `which prince`.chomp

        if prince_cmd.length == 0
          raise RuntimeError.new "Cannot locate prince binary. Please check your path"
        end

        prince_cmd << " --input=html --server "
        stylesheets.each { |s| prince_cmd << " -s #{s} " }
        prince_cmd << " --silent - -o -"
      end