Users Guide
Undoing Commands
When you enter a command, the command line is added to the running conguration le (running-cong).
To disable a command and remove it from the running-cong, enter the no command, then the original command. For example, to delete
an IP address congured on an interface, use the no ip address ip-address command.
NOTE: Use the help or ? command as described in Obtaining Help.
Example of Viewing Disabled Commands
DellEMC(conf)#interface tengigabitethernet 1/1/1/1
DellEMC(conf-if-te-1/1/1/1)#ip address 192.168.10.1/24
DellEMC(conf-if-te-1/1/1/1)#show config
!
interface tenGigabitEthernet 1/1/1/1
ip address 192.168.10.1/24
no shutdown
DellEMC(conf-if-te-1/1/1/1)#no ip address
DellEMC(conf-if-te-1/1/1/1)#show config
!
interface TenGigabitEthernet 1/1/1/1
no ip address
no shutdown
Layer 2 protocols are disabled by default. To enable Layer 2 protocols, use 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:
• To list the keywords available in the current mode, enter ? at the prompt or after a keyword.
• Enter ? after a command prompt to list all of the available keywords. The output of this command is the same as the help command.
DellEMC#?
bmp BMP commands
cd Change current directory
clear Reset functions
clock Manage the system clock
• Enter ? after a partial keyword lists all of the keywords that begin with the specied letters.
DellEMC(conf)#cl?
class-map
clock
DellEMC(conf)#cl
• Enter [space]? after a keyword lists all of the keywords that can follow the specied keyword.
DellEMC(conf)#clock ?
summer-time Configure summer (daylight savings) time
timezone Configure time zone
DellEMC(conf)#clock
Entering and Editing Commands
Notes for entering commands.
• The CLI is not case-sensitive.
• You can enter partial CLI keywords.
– Enter the minimum number of letters to uniquely identify a command. For example, you cannot enter cl as a partial keyword
because both the clock and class-map commands begin with the letters “cl.” You can enter clo, however, as a partial keyword
because only one command begins with those three letters.
44
Conguration Fundamentals