The '?' in the argument makes me wonderif you're attempting to code some CGI.
If so, I'd suggest you check out CGI.pm.
The executing of a program from within perl is happily done using the exec command (perldoc -f exec).
Creating a file for output is as simple as:

open (OUTFILE, ">/path/to/file.txt") or die "Can't open file for text 
+output!\n";
print OUTFILE 'Some text you want to print to the file';
close OUTFILE;
[download]

In the open, note the direction of the chevron. If it points towards the filename, it writes to it. If it points the other direction, it reads from it.
There are other open modes, but that's just something to get you up and going
Hope this helps some

Malk *I lost my .sig. Do you have a spare?*