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 programming language which can be used for a large variety of tasks. A typical simple use of Perl would be for extracting information from a text file and printing out a report or for converting a text file into another form.