Whats a man page?
A man page is a concise description of how to use a piece of software, intended to be read using man or one of its work-alikes. Think of man pages as pages from a reference manual. All Unix platforms, including GNU/Linux and Mac OS X, as well as Cygwin/MS-Windows, include a program called man that can be used to find and display man pages. This is the standard form of documentation for all Unix software. Almost all PhysioToolkit applications have man pages.