#! perl -slw
use strict;
use Data::Dump qw[ pp ];

my @required = qw(
    File::Basename
    File::Copy
    File::Find
);

pp \%INC;

my @missing;
foreach (@required) {
    s[::][/]g;
    s[$][.pm];
    eval { require };
    push @missing, $_ if $@;
}

print for @missing;

pp \%INC;

__END__
C:\test>junk39
{
  "Data/Dump.pm"                        => "c:/perl64/lib/Data/Dump.pm",
  "Exporter.pm"                         => "c:/perl64/lib/Exporter.pm",
  "List/Util.pm"                        => "c:/perl64/site/lib/List/Util.pm",
  "Scalar/Util.pm"                      => "c:/perl64/site/lib/Scalar/Util.pm",
  "XSLoader.pm"                         => "c:/perl64/lib/XSLoader.pm",
  "c:/perl64/site/lib/sitecustomize.pl" => "c:/perl64/site/lib/sitecustomize.pl",
  "overload.pm"                         => "c:/perl64/lib/overload.pm",
  "strict.pm"                           => "c:/perl64/lib/strict.pm",
  "subs.pm"                             => "c:/perl64/lib/subs.pm",
  "vars.pm"                             => "c:/perl64/lib/vars.pm",
  "warnings.pm"                         => "c:/perl64/lib/warnings.pm",
  "warnings/register.pm"                => "c:/perl64/lib/warnings/register.pm",
}

{
  "Config.pm"                           => "c:/perl64/lib/Config.pm",
  "Cwd.pm"                              => "c:/perl64/site/lib/Cwd.pm",
  "Data/Dump.pm"                        => "c:/perl64/lib/Data/Dump.pm",
  "Exporter.pm"                         => "c:/perl64/lib/Exporter.pm",
  "File/Basename.pm"                    => "c:/perl64/lib/File/Basename.pm",
  "File/Copy.pm"                        => "c:/perl64/lib/File/Copy.pm",
  "File/Find.pm"                        => "c:/perl64/lib/File/Find.pm",
  "File/Spec.pm"                        => "c:/perl64/site/lib/File/Spec.pm",
  "File/Spec/Unix.pm"                   => "c:/perl64/site/lib/File/Spec/Unix.pm",
  "File/Spec/Win32.pm"                  => "c:/perl64/site/lib/File/Spec/Win32.pm",
  "List/Util.pm"                        => "c:/perl64/site/lib/List/Util.pm",
  "Scalar/Util.pm"                      => "c:/perl64/site/lib/Scalar/Util.pm",
  "XSLoader.pm"                         => "c:/perl64/lib/XSLoader.pm",
  "c:/perl64/site/lib/sitecustomize.pl" => "c:/perl64/site/lib/sitecustomize.pl",
  "overload.pm"                         => "c:/perl64/lib/overload.pm",
  "re.pm"                               => "c:/perl64/lib/re.pm",
  "strict.pm"                           => "c:/perl64/lib/strict.pm",
  "subs.pm"                             => "c:/perl64/lib/subs.pm",
  "vars.pm"                             => "c:/perl64/lib/vars.pm",
  "warnings.pm"                         => "c:/perl64/lib/warnings.pm",
  "warnings/register.pm"                => "c:/perl64/lib/warnings/register.pm",
}