Install untex by entering the following commands in the terminal:
sudo apt update sudo apt install untex
Description:
remove LaTeX commands from input
The program will remove “some LaTeX commands” from a file (it will optionally try to strip out all mathematics, too). It also has an option to honour \input and \include commands in the file. Input is read from files and results are sent to stdout.
Homepage: http://www.ctan.org/pkg/untex
Version: 1:1.2-6
Section: universe/tex