Install libsort-key-top-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libsort-key-top-perl
Description:
Perl module to select and sort top n elements of a list
The functions available from this module select the top n elements from a list using several common orderings and custom key extraction procedures. . They are all variations around 'keytopsort { CALC_KEY($_) } $n => @data;'. . In array context, this function calculates the ordering key for every element in @data using the expression inside the block. Then it selects and orders the $n elements with the lower keys when compared lexicographically. . In scalar context, the value returned by the functions on this module is the cutoff value allowing to select nth element from the array.
Homepage: http://search.cpan.org/dist/Sort-Key-Top/
Version: 0.08-2
Section: universe/perl