Install dhelp by entering the following commands in the terminal:
sudo apt update sudo apt install dhelp
Description:
online help system
Read all documentation with a WWW browser. dhelp builds an index of all installed HTML documentation. You don't need a WWW server to read the documentation. dhelp offers a very fast search in the HTML documents. . You can access the online help system with the dhelp program or with your browser. The URL to point your browser at is (if you have a WWW server installed) http://localhost/doc/HTML/index.html , else (if you do not) file://localhost/usr/share/doc/HTML/index.html.
Version: 0.6.25
Section: universe/doc