This is Perl module File::History.

INSTALLATION

File::History installation is straightforward. If your CPAN shell is set up, you should just be able to do

% cpan File::History

Download it, unpack it, then build it as per the usual:

% perl Makefile.PL
% make && make test

Then install it:

% make install

DOCUMENTATION

File::History documentation is available as in POD. So you can do:

% perldoc File::History

to read the documentation online with your favorite pager.

Kazuhiro Nishikawa