intro(8) - Linux man page
Name
intro - introduction to administration and privileged commandsDescription
Section 8 of the manual describes commands which either can be or are only used by the superuser, like system-administration commands, daemons, and hardware-related commands.As with the commands in described section 1, the commands described in this section terminate with an exit status that indicates whether the command succeeded or failed. See intro(1) for more information.