Hi, sorry maybe I was not so clear with the question, I am using a normal computer with windows, the files that I am working with where stored by someone using a mac, that is why new line indicator is different and not recognized by the open function in perl. It took me a while to realized why it was not working properly. First I started programming with perl since a couple of hours and the second thing is that my text editor can handle mac, unix, dos terminations, giving no hint what kind of format for the new line was used. Thanks for the answer anyway :))