There are a few ways to convert a man page to HTML on Linux and Unix. One method is to use the command line tool “groff” to format the man page as HTML. Here is an example command:
groff -mandoc -Thtml manpage.1 > manpage.html
Another method is to use the command line tool “man2html” to convert the man page to HTML. Here is an example command:
man -T html manpage.1 > manpage.html
You can also install man2html on Ubuntu.
sudo apt install man2html
and then you can use it like this:
man2html manpage.1 > manpage.html
You can use any of these command to convert man page to HTML on Linux and Unix.