anchor.diff:      {error, cannot_to_erl};
   try_to_erl(Command, N) ->
       ?dbg({?LINE,N}),
  -    Port = open_port({spawn, Command},[eof,{line,1000}]),
  -    Timeout = timeout(normal) div 2,
  +    Port = open_port({spawn, Command},[eof]),
  +    Timeout = timeout(short) div 2,
       receive
  -	{Port, eof} -> 	
  -	    receive after Timeout ->
  -			    ok
  -		    end,
  +	{Port, eof} ->
  +            timer:sleep(Timeout),
   	    try_to_erl(Command, N-1)
       after Timeout ->
   	    ?dbg(Port),
  
positive.code:     {ok, Logs} =
          rtnode([
                  {putline, ""},
                  {putdata, [$\^p]}, {sleep,50}, %% the halt.
                  {putdata, [$\^p]}, {sleep,50}, %% the echo.
                  {putdata, [$\n]},
                  {getline, "echo"}
                 ], [], [], "-kernel shell_history enabled " ++ mk_sh_param(Path)),
  
negative.code: 
  %%-define(DEBUG,1).
  -ifdef(DEBUG).
  -define(dbg(Data),ct:pal("~p",[Data])).
  -else.
  -define(dbg(Data),noop).
  -endif.
  