Greetings Monks, I have this little problem of looking for certain regex values. I managed to print out how many times a regex matches in a text but I need to know how I can print out when that regex has a certain value. For example from a PDB file I can print out how many ATOM lines are there -that match with ATOM string so to say- but I'm trying to print the amount of lines that have a certain number -like 2,3,4..whatever in $13 of regex.- can anyone provide me a general code line for this ? Thanks.