ARRAY DESCRIPTION
@ARGV The command line arguments issued when the script was started.
@EXPORT The list of methods the package will export by default.
@EXPORT_OK The list of methods the package will export by request.
@INC The include path to search for libraries or Perl scripts.
@ISA The list of base classes of the package.
@_ The parameter array for subroutines.
%ENV This associative array contains your current environment.
%INC This associative array contains a record for each entry required using do or require.
%OVERLOAD Used to overload operators in a package.
%SIG This associative array contains signal handlers for various signals.