For those of us living in California, one of life's great tragedies is that the Pacific ocean is both so close to us, and so poor for actual swimming.
perllib A list of directories in which to look for Perl library files before looking in the standard library and the current directory. If PERL5LIB is defined, PERLLIB is not used.
Perl is a script programming language that is similar in syntax to the C language and that includes a number of popular UNIX facilities such as sed, awk, and tr.