La commande man affiche une aide relative à une commande.
Exemple :
beyrouth ~/doc/unix $ man man man(1) man(1) NAME man - format and display the on-line manual pages manpath - determine user's search path for man pages SYNOPSIS man [-adfhkKtwW] [-m system] [-p string] [-C config_file] [-M path] [-P pager] [-S section_list] [section] name ... DESCRIPTION man formats and displays the on-line 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. You may also specify the order to search the sections for entries and which prepro- cessors to run on the source files via command line options or environment variables. If name contains a / then it is first tried as a filename, so that you can do man ./foo.5 or even man /cd/foo/bar.1.gz. : beyrouth ~/doc/unix $C'est la commande la plus importante que vous ayez à connaıtre.