or:use FindBin; use lib "$FindBin::Bin/../lib";
FindBin exports the following variables:use FindBin qw($Bin); use lib "$Bin/../lib";
Path to bin directory from which script was invoked.
Basename of script from which Perl was invoked.
$Bin with all links resolved.
$Script with all links resolved.
If you invoke Perl with the -e option or read the Perl script from
STDIN, then FindBin sets both
$RealBin to the current