on_data_proc = lambda do |ch, data|
        log.puts "out: #{data}"
        channel.send_data("yes\n") if data =~ /continue connecting \(yes\/no\)/i
        channel.send_data("#{cmds["password"]}\n") if data =~ /Password/i
        if data =~ /Last login:/i
          log.puts "logged in"
          process_cmds(cmds, nest+1, params)
          log.puts "processing nested commands finished"
          channel.on_data do |ch, data|
            on_data_proc.call(ch, data)
          end
          channel.send_data("exit\n")
        end
      end

      channel.on_data do |ch, data|
        on_data_proc.call(ch, data)
      end