perlre Perl regular expressions
perlrun Perl execution and options
perlfunc Perl builtin functions
+ perlopentut Perl open() tutorial
perlvar Perl predefined variables
perlsub Perl subroutines
perlopentut Perl opening things tutorial
perltie Perl objects hidden behind simple variables
perlbot Perl OO tricks and examples
perlipc Perl interprocess communication
+ perlthrtut Perl threads tutorial
perldebug Perl debugging
perldiag Perl diagnostic messages