Man page
From SHellium Wiki
A "man page", short for "manual page", is a file documenting the use/purpose of a program, options and flags, common usage, and often a history of the program. Man pages can be accessed at the shell by typing "man <command>". "man" is the program that formats and displays the man pages, and more information about it can be accessed by "man man".
External links
Use the following links for online man pages, without having to be logged in to a Unix system.