Install g15composer by entering the following commands in the terminal:
sudo apt update sudo apt install g15composer
Description:
Scriptable command interface to libg15render
G15composer provides a scriptable command interface to libg15render that exposes all of the text and graphics functions of libg15render to shell and other scripts.
Homepage: http://www.g15tools.com/
Version: 3.2-2build1
Section: universe/utils