Re: Reading unknown number of lines in unknown number of files

Dzien dobre, Luka.
You can find which CWxx.DAT files exist and what size they are and so
how mnay records in each by using the directory enquiry via a SYSTEM
(DIR CW??.DAT> mydir) call and reading back the created file. If the
records are fixed length you simple divide file size by record length,
for each file.

You can also find the length of any file via another service call (an
API one).
If the records are not fixed length you will have to read them and
count them first as suggested above.