Install atfs by entering the following commands in the terminal:
sudo apt update sudo apt install atfs
Description:
Attributed File System (AtFS)
AtFS is a storage system supporting multiple versions of files and associating an arbitrary number of application defined attributes of the form "name=value" with each version. AtFS comes as a function library that is meant as an extension to the UNIX file system. It does this without the need for kernel modifications and without imposing any restrictions to existing file system applications. It is part of ShapeTools, a software configuration management system.
Homepage: http://swt.cs.tu-berlin.de/~shape/index.html
Version: 1.4pl6-14
Section: universe/libs