Install fbcat by entering the following commands in the terminal:
sudo apt update sudo apt install fbcat
Description:
framebuffer grabber
fbcat grabs a screenshot of a framebuffer and stores in a PPM file. . This package also provides a compatibility wrapper around fbcat to ease migration from fbgrab.
Homepage: http://fbcat.googlecode.com/
Version: 0.3-1build1
Section: universe/graphics