I think that you are somewhat confused. You can do either of two (or possibly more) things: 1. Launch your script only once, with the two files as arguments, and process each argument one after the other with the same subroutine; or 2. launch the script twice, each time with only one argument. Both approaches are valid, it is up to you to decide how you want to do it, but I would personally tend to favor the first approach (this enables to take into account things that happened while reading the first file when reading the second one, which would be much more difficult with the second solution). The first solution could more or less look as follows: 
perl process_files.pl file1.txt file2.txt

[download]
and, inside the program: 
for $inputfile (@ARGV) {
     process_file ($inputfile);
}

[download]
The second approach would probably require a shell script under Un*x, or *.bat command script under Windows (or *.com command file under VMS, or whatever with other OS's) to loop over the two filenames. One of the advantages of the first approach is that it can be more portable across platforms.

In reply to Re^3: sending data thru a sub routine by Laurent_R
in thread sending data thru a sub routine by james28909

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