Perl 5 is a highly capable, feature-rich programming language with over 30 years of development.
With free online books, over 25,000 extension modules, and a large developer community, there are many ways to learn Perl 5.
Perl has an active world wide community with over 300 local groups, mailing lists and support/discussion websites.
The Comprehensive Perl Archive Network (CPAN) has over 25,000 open source distributions available for download.
Raku (formerly known as Perl 6) is a sister language, part of the Perl family, not intended as a replacement for Perl 5, but as its own thing - libraries exist to allow you to call Perl 5 code from Raku programs and vice versa.
The Perl Foundation is dedicated to the advancement of the Perl programming language through open discussion, collaboration, design, and code.