NAME
Data::Unixish::head - Output the first items of data
VERSION
version 1.28
SYNOPSIS
In Perl:
use Data::Unixish::head;
my $in = [1..100];
my $out = [];
Data::Unixish::head::head(in=>$in, out=>$out); # $out = [1..10]In command line:
% seq 1 100 | dux head -n 20 | dux tail --format=text-simple -n 5
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20AUTHOR
Steven Haryanto <stevenharyanto@gmail.com>
COPYRIGHT AND LICENSE
This software is copyright (c) 2013 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.
DESCRIPTION
FUNCTIONS
None are exported by default, but they are exportable.
head(%args) -> [status, msg, result, meta]
Output the first items of data.
Arguments ('*' denotes required arguments):
in => any
items => int (default: 10)
Number of items to output.
out => any
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.