Reference Guide

Configuration Fundamentals | 39
Figure 2-5. Undoing a command with the no Command
Layer 2 protocols are disabled by default. Enable them using the no disable command. For example, in
PROTOCOL SPANNING TREE mode, enter
no disable to enable Spanning Tree.
Obtaining Help
Obtain a list of keywords and a brief functional description of those keywords at any CLI mode using the ?
or
help command:
• Enter
? at the prompt or after a keyword to list the keywords available in the current mode.
•
? after a prompt lists all of the available keywords. The output of this command is the same for the
help command.
Figure 2-6. ? Command Example
• ? after a partial keyword lists all of the keywords that begin with the specified letters.
Figure 2-7. Keyword? Command Example
Dell(conf)#interface tengigabitethernet 5/1
Dell(conf-if-te-5/1)#ip address 192.168.10.1/24
Dell(conf-if-te-5/1)#show config
!
interface TenGigabitEthernet 5/1
!
ip address 192.168.10.1/24
shutdown
Dell(conf-if-te-5/1)#no ip address
Dell(conf-if-te-5/1)#show config
!
interface TenGigabitEthernet 5/1
no ip address
shutdown
Dell(conf-if-te-5/1)#
IP address assigned
“no” form of IP address command
IP address removed
Dell#?
start Start Shell
capture Capture Packet
cd Change current directory
clear Reset functions
clock Manage the system clock
configure Configuring from terminal
copy Copy from one file to another
--More--
“?” at prompt for list of commands
Dell(conf)#cl?
class-map
clock
Dell(conf)#cl
partial keyword plus “[space]?” for matching keywords