1CHECKDIGITS(1) User Contributed Perl Documentation CHECKDIGITS(1)
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6 checkdigits - check or generate check digits
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9 This document describes checkdigits v1.3.3
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12 checkdigits [Options] command [[number] ...]
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14 options:
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16 -algorithm alg - use this algorithm
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18 commands:
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20 check - check validity of number containing checkdigit
21 checkdigit - return checkdigit belonging to number
22 complete - return number completed with checkdigit
23 list_algorithms - list all known algorithms
24 describe - describe the given algorithms
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27 This is a command line program that may be used to compute any
28 checkdigit known by the perl module Algorithm::CheckDigits.
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31 Options
32 -algorithm alg
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34 Compute checkdigits according to algorithm alg. Instead of providing
35 the algorithm with this option, you may choose to rename the program to
36 the name of the algorithm or to "checkdigits-" followed by the name of
37 the algorithm.
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39 You must provide the algorithm with any of these means or the program
40 will not compute any checkdigit.
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42 Commands
43 check
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45 checkdigit
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47 complete
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49 When called with this command, the program will take the number compute
50 the appropriate checkdigits and return the complete number with
51 checkdigits.
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53 describe
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55 Called with this command, the program will list the algorithm handles
56 given on the command line with a short description or the word
57 "unknown" for any unknown algorithm. See command list_algorithms for a
58 list of known algorithms.
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60 list_algorithms
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62 Called with this command, the program will list all known algorithms
63 together with a short description and then exit.
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67 At the moment the program doesn't recognise any environment variables.
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69 The algorithm to use may be predefined by renaming the program to the
70 name of the algorithm or to "checkdigits-" followed by the name of the
71 algorithm.
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74 Mathias Weidner "mamawe@cpan.org"
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77 Copyright (c) 2010-2020, Mathias Weidner "mamawe@cpan.org". All rights
78 reserved.
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80 This module is free software; you can redistribute it and/or modify it
81 under the same terms as Perl itself. See perlartistic.
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84 BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
85 FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT
86 WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER
87 PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND,
88 EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
89 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
90 ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH
91 YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
92 NECESSARY SERVICING, REPAIR, OR CORRECTION.
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94 IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
95 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
96 REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE
97 TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR
98 CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
99 SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
100 RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
101 FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
102 SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
103 DAMAGES.
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107perl v5.38.0 2023-07-20 CHECKDIGITS(1)