How to list the manual sections On my OS X Yosemite, when running man man I was excepting to see a list of MANUAL SECTIONS and their number, but I don't. As a Windows user until lately, I'm not familiar with the meaning of the different section numbers that are printed in parenthesis next to the command name.

So how do I list them?
Such information on OS X is instead located in man manpages, which is also available online here:

MANUAL PAGE SECTIONS
The manual is divided into sections. Each section covers a particular subject area. The major manual page sections are:
1      General User Commands
2      System Calls
3      Library Routines (*)
4      Special Files and Sockets
5      File formats and Conventions
6      Games and Fun Stuff
7      Miscellaneous Documentation
8      System Administration
9      Kernel and Programming Style
n      Tcl/Tk

Run man manpages in Terminal or open that link to read more in-depth information.