NAME App::PickRandomLines - Pick one or more random lines from input VERSION This document describes version 0.020 of App::PickRandomLines (from Perl distribution App-PickRandomLines), released on 2020-04-29. SYNOPSIS See pick-random-lines. FUNCTIONS pick_random_lines Usage: pick_random_lines(%args) -> [status, msg, payload, meta] Pick one or more random lines from input. TODO: * option to allow or disallow duplicates This function is not exported. Arguments ('*' denotes required arguments): * algorithm => *str* (default: "scan") "scan" is the algorithm described in the "perlfaq" manual (`perldoc -q "random line"). This algorithm scans the whole input once and picks one or more lines randomly from it. "seek" is the algorithm employed by the Perl module "File::RandomLine". It works by seeking a file randomly and finding the next line (repeated "n" number of times). This algorithm is faster when the input is very large as it avoids having to scan the whole input. But it requires that the input is seekable (a single file, stdin is not supported and currently multiple files are not supported as well). *Might produce duplicate lines*. * files => *array[filename]* If none is specified, will get input from stdin. * num_lines => *int* (default: 1) If input contains less lines than the requested number of lines, then will only return as many lines as the input contains. Returns an enveloped result (an array). First element (status) is an integer containing HTTP status code (200 means OK, 4xx caller error, 5xx function error). Second element (msg) is a string containing error message, or 'OK' if status is 200. Third element (payload) is optional, the actual result. Fourth element (meta) is called result metadata and is optional, a hash that contains extra information. Return value: (any) HOMEPAGE Please visit the project's homepage at <https://metacpan.org/release/App-PickRandomLines>. SOURCE Source repository is at <https://github.com/perlancar/perl-App-PickRandomLines>. BUGS Please report any bugs or feature requests on the bugtracker website <https://rt.cpan.org/Public/Dist/Display.html?Name=App-PickRandomLines> When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature. SEE ALSO Data::Unixish::pick. AUTHOR perlancar <firstname.lastname@example.org> COPYRIGHT AND LICENSE This software is copyright (c) 2020 by email@example.com. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.