Perl - How to change @INC to include non-standard path

Have been playing around with local::lib and bootstrap a few directories. After switching a few local::lib directories, I tend to forget which cpan module is installed in which local::lib directory and this make perl don't know where to find the cpan module. This is how to set the environment variable @INC so that perl can quickly locate the cpan module.

export PERL5LIB=$PERL5LIB:/some/other/perl/lib/path

To make a directory precedence over the current @INC path, e.g. :

export PERL5LIB=/some/other/perl/lib/path:$PERL5LIB

Show me the path :

perl -E 'map{say}@INC'

* requires perl 5.10 and above.

Or,

perl -V

Ciao !!!