note surib Sorry about not using the <code>. Here's my code when I actually hard code the '7R', yet it still fails. I must be missing something else? <br> <code> my ($product, $year, $month, $day, $hour, $suffix, $ver ) = split /\./, $fileName; # test file name--naming convention is '<product>.<year>.<month>.<day>.<hour>.bin' if ($fileName =~ /3B4[0|1|2]RT\.\d{10}\.\7R\.bin/) { ($product, $year, $month, $day, $hour, $ver) = ($fileName =~ /(3B4.RT)\.(\d{4})(\d\d)(\d\d)(\d\d)\.(7R\)\.bin/); $version = sprintf "%03d", $ver; # a little confusing, $version is global # $ver is local } elsif ($fileName =~ /3B4\dRT\.\d\d\d\d\.\d\d\.\d\d.\d\dz\.bin/) { ($product, $year, $month, $day, $hour, $suffix) = split /\./, $fileName; } else { print STDERR "($0,$$) ERROR: invalid file name--'$fileName'\n" if $opt_v; exit 2; } </code> 998720 998745