$ sudo apt-get update
$ sudo apt-get install linuxdoc-tools-latex 

linuxdoc-tools-latex is installed in your system.

Make ensure the linuxdoc-tools-latex package were installed using the commands given below,

$ sudo dpkg-query -l | grep linuxdoc-tools-latex *

You will get with linuxdoc-tools-latex package name, version, architecture and description in a table

linuxdoc-tools-latex package basic information: