This is Perl module IO::File::WithPath. INSTALLATION IO::File::WithPath installation is straightforward. If your CPAN shell is set up, you should just be able to do % cpan IO::File::WithPath Download it, unpack it, then build it as per the usual: % perl Makefile.PL % make && make test Then install it: % make install DOCUMENTATION IO::File::WithPath documentation is available as in POD. So you can do: % perldoc IO::File::WithPath to read the documentation online with your favorite pager. Masahiro Chiba