(That's assuming, of course, that the script runs to completion ;-)

Since that's the problem facing Special_K perhaps using a coderef in @INC will be a more useful strategy in this instance*.

#!/usr/bin/env perl
use strict;
use warnings;

BEGIN {
    unshift @INC, sub { warn "Loading $_[1]\n"; 0; };
}

use File::Copy;

[download]

When I run this (with File::Copy 2.35 on perl 5.34.0 on Linux) the result is:

Loading File/Copy.pm
Loading File/Spec.pm
Loading File/Spec/Unix.pm
Loading Cwd.pm
Loading Exporter.pm
Loading XSLoader.pm
Loading constant.pm
Loading warnings/register.pm
Loading Config.pm
Loading Time/HiRes.pm
Loading Exporter/Heavy.pm
Loading Scalar/Util.pm
Loading List/Util.pm
Loading overload.pm
Loading overloading.pm

[download]

So List::Util is in there on my platform right enough.

* I'm sure there's a module for this but I can neither remember nor find it just now.

🦛

In reply to Re^2: help with "symbol lookup error" message by hippo
in thread help with "symbol lookup error" message by Special_K

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.