manpath—determines user's search path for man pages

man [-acdfhkKtwW] [-m system] [-p string][-C config_file][-M path]

   [-P pager] [-S section_list][section] name  ...

man formats and displays the online manual pages. This version knows about the MANPATH and (MAN)PAGER environment variables, so you can have your own set(s) of personal man pages and choose whatever program you like to display the formatted pages. If section is specified, man only looks in that section of the manual.