We can search whole man page using man -wK.
We can get the git subcommands using git help -a. We can get common git guides using git help -g.
For an overview of the system we can use git help git. To check the man page of a particular subcommand we can use, for example git help add. To check the man page of a particular guides we can use, for example git help cli.
I am interested to search the whole git (its subcommands, guides and overview man pages).
How can I do that?