... specific files. and with that ...
srtools(1) makes partially synchronizng hosts easy. Also can be a far easier way to do incremental or nightly backups. Also an easy way to have multiple hosts interact.
README is visible on file download page
EXAMPLE: $rcssrdist file
(file was broadcased to default hosts list that are up. if a rcs pair existed it was taken care of. existence of directory on other hosts was checked (common mistakes checked)