One little known feature of rsync is the fact that when run over anot sure how to make this work.
remote shell (such as rsh or ssh) you can give any shell command as
the remote file list. The shell command is expanded by your remote
shell before rsync is called. For example, see if you can work out
what this does:
rsync -avR remote:'`find /home -name "*.[ch]"`' /tmp/
note that that is backquotes enclosed by quotes (some browsers don't
show that correctly).