Install attr by entering the following commands in the terminal:
sudo apt update sudo apt install attr
Description:
Utilities for manipulating filesystem extended attributes
A set of tools for manipulating extended attributes on filesystem objects, in particular getfattr(1) and setfattr(1). An attr(1) command is also provided which is largely compatible with the SGI IRIX tool of the same name.
Homepage: http://savannah.nongnu.org/projects/attr/
Version: 1:2.4.47-2build1
Section: utils