This is Perl module Sub::Data::Recursive.
Sub::Data::Recursive installation is straightforward. If your CPAN shell is set up, you should just be able to do
% cpan Sub::Data::Recursive
Download it, unpack it, then build it as per the usual:
% perl Makefile.PL % make && make test
Then install it:
% make install
Sub::Data::Recursive documentation is available as in POD. So you can do:
% perldoc Sub::Data::Recursive
Sub::Data::Recursive is hosted on github http://github.com/bayashi/Sub-Data-Recursive
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic.
Dai Okabayashi <bayashi@cpan.org>
To install Sub::Data::Recursive, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Sub::Data::Recursive
CPAN shell
perl -MCPAN -e shell install Sub::Data::Recursive
For more information on module installation, please visit the detailed CPAN module installation guide.