Official documentation

Where to read more: perlintro, the function and operator references, the regex tutorial and perldiag.

Runs in Zerethon IDE · Perl 5.40 Official Perl documentation ↗

This reference covers the parts you need most often. The official Perl documentation (perldoc) is complete and free to read:

  • perlintro — the whole language in one page, for a first look.
  • perlfunc and perlop — every built-in function and operator.
  • perlretut — regular expressions, step by step.
  • perldiag — every error and warning message, with an explanation.