A wealth of information is available for Perl both on your Linux machine and online. There are several man pages:
$ man perl $ man perlop $ man perlsyn
A program called perldoc :
$ perldoc perldoc $ perldoc -f print
And a Web site: www.perldoc.com/. There are also newsgroups, CPAN at www.perl.com and big, fat Perl books, should these not suffice.