The following example displays brief information about the help system.
Ruijie#help
Help may be requested at any point in a command by entering
a question mark '?'. If nothing matches, the help list will
be empty and you must backup until entering a '?' shows the
available options.
Two styles of help are provided:
1. Full help is available when you are ready to enter a
command argument (e.g. 'show ?') and describes each possible
argument.
2. Partial help is provided when an abbreviated argument is entered
and you want to know what arguments match the input
(e.g. 'show pr?'.)
The following example displays all available commands in interface configuration mode.
Ruijie(config-if-GigabitEthernet 0/0)#?
Interface configuration commands:
arp ARP interface subcommands
bandwidth Set bandwidth informational parameter
carrier-delay Specify delay for interface transitions
dampening Enable event dampening
default Set a command to its defaults
description Interface specific description
dldp Exec data link detection command
duplex Configure duplex operation
efm Config efm for an interface