Install unison-all-gtk by entering the following commands in the terminal:
sudo apt update sudo apt install unison-all-gtk
Description:
file synchronization tool (all GTK+ versions)
This is a metapackage that depends on all supported GTK+ versions of Unison, a file synchronization tool. . Each of the supported versions uses a different protocol version; installing this metapackage ensures the ability to synchronize with old systems.
Version: 2.48+2
Section: universe/metapackages