NAME
     man - find and display reference manual pages

SYNOPSIS
     man -k keyword ...
     man -f file ...

DESCRIPTION
     The man command  displays  information  from  the  reference
     manuals.   It displays complete manual pages that you select
     by name, or one-line summaries selected either by keyword (-
     k), or by the name of an associated file (-f).  If no manual
     page is located, man prints an error message.

for more information, use the 'man man' command.