in reply to
robots and perl...
use a 'robots.txt' file (for parts of your site)
the META html tag (for one page): <META name="ROBOTS" content="NOINDEX, NOFOLLOW">
(see this page for an example/explanation)
UPDATE : This page seems to be more informative.
But as always use your search engine to find THE one that fits you...
"Only Bad Coders Code Badly In Perl" (OBC2BIP)
Alternative e.g. Carob
Results (94 votes),