NAME

       checkdigits - check or generate check digits

VERSION

       This document describes checkdigits v1.3.3

SYNOPSIS

         checkdigits [Options] command [[number] ...]

         options:

          -algorithm alg - use this algorithm

         commands:

          check           - check validity of number containing checkdigit
          checkdigit      - return checkdigit belonging to number
          complete        - return number completed with checkdigit
          list_algorithms - list all known algorithms
          describe        - describe the given algorithms

DESCRIPTION

       This is a command line program that may be used to compute any checkdigit known by the perl module
       Algorithm::CheckDigits.

OPTIONS AND COMMANDS

   Options
       -algorithm alg

       Compute checkdigits according to algorithm alg. Instead of providing the algorithm with this option, you
       may choose to rename the program to the name of the algorithm or to "checkdigits-" followed by the name
       of the algorithm.

       You must provide the algorithm with any of these means or the program will not compute any checkdigit.

   Commands
       check

       checkdigit

       complete

       When called with this command, the program will take the number compute the appropriate checkdigits and
       return the complete number with checkdigits.

       describe

       Called with this command, the program will list the algorithm handles given on the command line with a
       short description or the word "unknown" for any unknown algorithm. See command list_algorithms for a list
       of known algorithms.

       list_algorithms

       Called with this command, the program will list all known algorithms together with a short description
       and then exit.

DIAGNOSTICS

CONFIGURATION AND ENVIRONMENT

       At the moment the program doesn't recognise any environment variables.

       The algorithm to use may be predefined by renaming the program to the name of the algorithm or to
       "checkdigits-" followed by the name of the algorithm.

AUTHOR

       Mathias Weidner "mamawe@cpan.org"

LICENCE AND COPYRIGHT

       Copyright (c) 2010-2020, Mathias Weidner "mamawe@cpan.org".  All rights reserved.

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl
       itself. See perlartistic.

DISCLAIMER OF WARRANTY

       BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT
       PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER
       PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
       INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
       PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE
       SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY
       OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE
       TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF
       THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
       RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE
       WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
       DAMAGES.

perl v5.36.0                                       2022-10-13                                    CHECKDIGITS(1p)