You can check @INC using a one-liner: 
perl -e 'print join "\n", @INC';

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Or simply run: 
perl -V

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The "." stands for the current directory; hence, it will always come last in the list. Here's a little snippet that I used a couple of years ago. I was experimenting with chromatic's Modern::Perl. It'll enable strict, warnings, and features. 

#!perl

use Modern::Perl;
use File::PathList;
use Data::Dumper::Concise;

my $inc = File::PathList->new( paths => \@INC );
say Dumper $inc;

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That was just to satisfy my obsession with Dumper:). You should also check to make sure that perl's in your path.

In reply to Re: @INC Errors by Khen1950fx
in thread @INC Errors by perl.j

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