... modules, 177 , 179 –183Getopt::Attribute module, 178 Getopt::Easy module, 177 Getopt::Long module, 177 , 181–183AppConfig module and, 186Getopt::Mixed module, 177 Getopt::Std module, 177 , 179 –181glob( ... documentation, 59perldoc, 239perlfunc documentation, 31perlopentuf documentation, 31perlpodspec documentation, 2 37 perlre documentation, 29regular expressions, 7 perlretut documentation, 29perlstyle ... 60–63 PERL5 LIB environment variable, 37, 56 PERL5 OPT environment variable, 174 Perl: :Critic module, 118–122perlbench tool, 92, 1 07 109perldebguts documentation, 26, 29benchmarking and, 102perldebug...