Install libscalar-util-numeric-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libscalar-util-numeric-perl
Description:
Perl module containing numeric tests for Perl datatypes
Scalar::Util::Numeric exports a number of wrappers around perl's builtin looks_like_number function, which returns the numeric type of its argument, or 0 if it isn't numeric.
Homepage: https://metacpan.org/release/Scalar-Util-Numeric
Version: 0.40-1build3
Section: universe/perl