perlancar > Data-Unixish > Data::Unixish::head

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Module Version: 1.48   Source  

NAME ^

Data::Unixish::head - Output the first items of data

VERSION ^

This document describes version 1.48 of Data::Unixish::head (from Perl distribution Data-Unixish), released on 2014-12-10.

SYNOPSIS ^

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

FUNCTIONS ^

head(%args) -> [status, msg, result, meta]

Output the first items of data.

Arguments ('*' denotes required arguments):

Return value:

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.

 (any)

SEE ALSO ^

head(1)

Data::Unixish::tail

HOMEPAGE ^

Please visit the project's homepage at https://metacpan.org/release/Data-Unixish.

SOURCE ^

Source repository is at https://github.com/perlancar/perl-Data-Unixish.

BUGS ^

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.

AUTHOR ^

perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE ^

This software is copyright (c) 2014 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.

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