Data::Unixish::num - Format number


version 1.41


In Perl:

 use Data::Unixish::List qw(dux);
 my @res = dux([num => {style=>"fixed"}], 0, 10, -2, 34.5, [2], {}, "", undef);
 # => ("0.00", "10.00", "-2.00", "34.50", [2], {}, "", undef)

In command line:

 % echo -e "1\n-2\n" | LANG=id_ID dux num -s fixed --format=text-simple


Steven Haryanto <>


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.



None are exported by default, but they are exportable.

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

Observe locale environment variable settings.

Undef and non-numbers are ignored.

Arguments ('*' denotes required arguments):

  • decimal_digits => any

    Number of digits to the right of decimal point.

  • in => any

    Input stream (e.g. array or filehandle).

  • out => any

    Output stream (e.g. array or filehandle).

  • prefix => str

    Add some string at the beginning (e.g. for currency).

  • style => str (default: "general")

    Available styles:

    • fixed (Fixed number of decimal digits, e.g. 1.00, default decimal digits=2)

    • general (General formatting, e.g. 1, 2.345)

    • kibi (Use Ki/Mi/GiB/etc suffix with base-10 [1000], e.g. 1.2Mi)

    • kilo (Use K/M/G/etc suffix with base-2, e.g. 1.2M)

    • percent (Percentage, e.g. 10.00%)

    • scientific (Scientific notation, e.g. 1.23e+21)

  • suffix => str

    Add some string at the end (e.g. for unit).

  • thousands_sep => str

    Use a custom thousand separator character.

    Default is from locale (e.g. dot "." for en_US, etc).

    Use empty string "" if you want to disable printing thousands separator.

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.