“The Unison development team is pleased to announce the
first public release of its open-source, cross-platform file
synchronization tool.“
“The Unison development team at the University of Pennsylvania
today announced the first public release (2.1) of its file
synchronization tool for Unix and Windows systems.”
“Unison allows two replicas of a collection of files and
directories to be stored on different hosts (or different disks on
the same host), modified separately, and then brought up to date by
propagating the changes in each replica to the other.”