perl functions are documented in perlfunc, they are not separated in modules and they are always loaded

perlrun details the ways you might configure your enviroment to load extra modules by default (sitecustomize/perl5opt)

See also Will the real Internals module please stand up?

In reply to Re: what module gets loaded with perl program by default ? by Anonymous Monk
in thread what module gets loaded with perl program by default ? by manishrathi

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