E:\> perldoc perltoc |grep module
            processes and process groups, Keywords related to perl modules,
            -I*directory*, -l[*octnum*], -m[-]*module*, -M[-]*module*,
            -M[-]*'module ...'*, -[mM][-]*module=arg[,arg]...*, -n, -p, -P,
  perlmod - Perl modules (packages and symbol tables)
  perlmodlib - constructing new Perl modules and finding existing ones
            module (sometimes unnecessary), INSTALL the module
  perlnewmod - preparing a new module for distribution
        What should I make into a module?
...