in reply to using a variable with require

See require for the full story. The short version is you need to replace :: with / and append a .pm

my $modName = 'Getopt/Long.pm';
require $modName;

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Update Oops, this just answers the easy part of the question! Still thinking about the second part.

Optimising for fewest key strokes only makes sense transmitting to Pluto or beyond

In Section Seekers of Perl Wisdom