$ find Scalar/
Scalar/
Scalar/Util
Scalar/Util/Numeric.pm

$ perl -e 'do "./Scalar/Util/Numeric.pm" or die;'
Can't locate loadable object for module Scalar::Util::Numeric in @INC (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.26.1 /usr/local/share/perl/5.26.1 /usr/lib/x86_64-linux-gnu/perl5/5.26 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.26 /usr/share/perl/5.26 /usr/local/lib/site_perl /usr/lib/x86_64-linux-gnu/perl-base) at -e line 1.
        ...propagated at -e line 1.