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