Optional features of the language (such as warnings and the “strict” pragma) that trap a lot of commmon Perl programming errors are emphasized.

Perl is a messy, maddening programming language, the “duct tape of the internet.” But at least you can tell it was made by humans.

To be clear, the Perl programming language's official website, perl.org, remains secure and intact. Perl.com, unfortunately, is also used as a mirror or backup for distributing modules via CPAN.

Hard to believe, but the 'Swiss Army chainsaw of scripting languages' and high-class glue holding the Internet together is 25 years young today.