README for Perl module Business::CCCheck This module provides a number of utility functions for checking the validity of credit card numbers and dates, including the LUHN check. You can read a nicely formatted version of the documentation for this module online: https://metacpan.org/pod/Business::CCCheck You should be able to install this using your usual method for installing modules from CPAN. If you don't have one let, have a look at: http://www.cpan.org/modules/INSTALL.html This module was written by Michael Robinton, Some maintenance releases have been done by Neil Bowers