This is a collection of perl code for dealing with GO and OBO style ontologies. It is part of the go-dev distribution, but can be used independently. The code contains both scripts (which can be used with no knowledge of perl), and libraries which will be of use to perl programmers using GO or OBO.
See the doc/ directory for more documentation
See also
perldoc go-perl.pod
Or look online
see the file INSTALL for installation instructions