/ 
Data-Unixish-1.44
River stage two • 9 direct dependents • 49 total dependents
/ Data::Unixish::head

NAME

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

VERSION

version 1.44

RELEASE DATE

2014-04-24

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):

  • in => any

    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).

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.

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/sharyanto/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

Steven Haryanto <stevenharyanto@gmail.com>

COPYRIGHT AND LICENSE

This software is copyright (c) 2014 by Steven Haryanto.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.