Install libnumber-compare-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libnumber-compare-perl
module for performing numeric comparisons in Perl
Number::Compare allows one to compile a simple comparison to an anonymous subroutine, which can then be called with a value to be tested against. . The advantage of using this module is that it understands both the SI prefixes 'k', 'M', and 'G', as well as the IEC binary prefixes 'Ki', 'Mi' and 'Gi'.