... 118–122perlbench tool, 92 , 107–1 09 perldebguts documentation, 26, 29 benchmarking and, 102perldebug documentation, 59 perldoc, 2 39 perlfunc documentation, 31perlopentuf documentation, 31perlpodspec ... (PAUSE), 1 59 Perl Best Practices, 14, 112 Perl Power Tools, 95 , 240 Perl Review, 266 perl5 db.pl, 47, 59, 60–63 PERL5 LIB environment variable, 37, 56 PERL5 OPT environment variable, 174 Perl: :Critic ... 237perlre documentation, 29 regular expressions, 7perlretut documentation, 29 perlstyle documentation, 112perlsub documentation, 155perltidy program, 112–114perlvar documentation, 193 PERL_ DPROF_OUT_FILE_NAMEenvironment...