man pages are a phenomenal resource while programming in C on Linux. While looking at someone else's code, if you see something foreign you can immediate research it in another terminal with
$ man 3 fileno
or whatever the syntax you don't understand is.
Is there a standard way to get "
man, but some program I can quickly call to research something like
$ man-python numpy.random.rand
instead of having to Google it and use HTML documentation. The same question holds generally for other programming languages.