Install fhist by entering the following commands in the terminal:
sudo apt update sudo apt install fhist
Description:
File history, comparison and merge utilities
The fhist package contains 3 utilities fhist - a file history tool fcomp - a file comparison tool fmerge - a file merging tool . All three are bundled together, because they all use the same minimal-difference algorithm.
Homepage: http://fhist.sourceforge.net/
Version: 1.18-2build1
Section: universe/devel