This is Perl module Scalar::Alias. INSTALLATION Scalar::Alias installation is straightforward. If your CPAN shell is set up, you should just be able to do $ cpan Scalar::Alias Download it, unpack it, then build it as per the usual: $ perl Makefile.PL $ make && make test Then install it: $ make install DOCUMENTATION Scalar::Alias documentation is available as in POD. So you can do: $ perldoc Scalar::Alias to read the documentation online with your favorite pager. Goro Fuji (gfx)