Command line too to convert .odt to .doc

Tue Dec 2 15:26:13 UTC 2008

Is there a command line tool for converting .odt files to .doc files?
Something that could be easily used in a Makefile would be really great.
I've googled for this but not found anything really suitable.

Regards,
Tony.
-- 
Tony Arnold,                        Tel: +44 (0) 161 275 6093
Head of IT Security,                Fax: +44 (0) 870 136 1004
University of Manchester,           Mob: +44 (0) 773 330 0039
Manchester M13 9PL.                 Email: tony.arnold at manchester.ac.uk