Data::Unixish::head - Output the first items of data
This document describes version 1.49 of Data::Unixish::head (from Perl distribution Data-Unixish), released on 2015-01-03.
In Perl:
use Data::Unixish::head; my @res; @res = dux("head", 1..100); # => (1..10) @res = dux([head => {items=>3}], 1..100); # => (1, 2, 3)
In command line:
% seq 1 100 | dux head -n 20 | dux tail --format=text-simple -n 5 16 17 18 19 20
Output the first items of data.
Arguments ('*' denotes required arguments):
in => array
Input stream (e.g. array or filehandle).
items => int (default: 10)
Number of items to output.
out => any
Output stream (e.g. array or filehandle).
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 (result) is optional, the actual result. Fourth element (meta) is called result metadata and is optional, a hash that contains extra information.
Return value: (any) =head1 SEE ALSO
head(1)
Data::Unixish::tail
Please visit the project's homepage at https://metacpan.org/release/Data-Unixish.
Source repository is at https://github.com/sharyanto/perl-Data-Unixish.
Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Data-Unixish
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.
perlancar <perlancar@cpan.org>
This software is copyright (c) 2015 by perlancar@cpan.org.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
To install Data::Unixish, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Data::Unixish
CPAN shell
perl -MCPAN -e shell install Data::Unixish
For more information on module installation, please visit the detailed CPAN module installation guide.