# File lib/rails-installer/commands.rb, line 107
      def self.command(installer, *args)
        if args.size == 0
          installer.config.keys.sort.each do |k|
            puts "#{k}=#{installer.config[k]}"
          end
        else
          args.each do |arg|
            if(arg=~/^([^=]+)=(.*)$/)
              if $2.to_s.empty?
                installer.config.delete($1.to_s)
              else
                installer.config[$1.to_s]=$2.to_s
              end
            else
              puts installer.config[arg]
            end
          end
          installer.save
        end
      end