# Generate files...
my $time = time();
open FILE ">$time.txt" or die $!;
print FILE  $stuff;
close FILE;
# this is repeated often, as from CGI...
#
# Retrieval now...
my @files = get_list_of_files();
@files = sort { $a cmb $b } @files;
foreach my $file ( @files ) {
   do_something_with_file ( $file );
}