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This chapter contains the following sections:
To enter the Global Configuration mode, use the configure Privileged EXEC mode command.
configure [terminal]
terminal—(Optional) Enter the Global Configuration mode with or without the keyword terminal.
Privileged EXEC mode
The following example enters Global Configuration mode.
switchxxxxxx# configure
switchxxxxxx(config)#To leave the Privileged EXEC mode and return to the User EXEC mode, use the disable Privileged EXEC mode command.
disable [privilege-level]
privilege-level—(Optional) Reduces the privilege level to the specified privileged level. If privilege level is left blank, the level is reduce to the minimal privilege level.
The default privilege level is 15.
Privileged EXEC mode
The following example returns the user to user level 1.
switchxxxxxx# disable 1
switchxxxxxx#
To execute an EXEC-level command from Global Configuration mode or any configuration submode, use the do command.
do command
command—Specifies the EXEC-level command to execute.
All configuration modes
The following example executes the show vlan Privileged EXEC mode command from Global Configuration mode.
switchxxxxxx(config)# do show vlan
|
Vlan |
Name |
Ports |
Type |
Authorization |
|
---- |
---- |
----- |
---- |
------------- |
|
1 |
1 |
gi1/0/1-4,Po1,Po2 |
other |
Required |
|
2 |
2 |
gi1/0/1 |
dynamicGvrp |
Required |
|
10 |
v0010 |
gi1/0/1 |
permanent |
Not Required |
|
11 |
V0011 |
gi1/0/1,gi1/0/3 |
permanent |
Required |
|
20 |
20 |
gi1/0/1 |
permanent |
Required |
|
30 |
30 |
gi1/0/1,gi1/0/3 |
permanent |
Required |
|
31 |
31 |
gi1/0/1 |
permanent |
Required |
|
91 |
91 |
gi1/0/1,gi1/0/4 |
permanent |
Required |
|
4093 |
guest-vlan |
gi1/0/1,gi1/0/3 |
permanent |
Guest |
switchxxxxxx(config)#To enter the Privileged EXEC mode, use the enable User EXEC mode command.
enable [privilege-level]
privilege-level—(Optional) Specifies the privilege level at which to enter the system.(Range: 1,7,15)
The default privilege level is 15.
User EXEC mode
The following example enters privilege level 7.
switchxxxxxx# enable 7
enter password:**********
switchxxxxxx# AcceptedThe following example enters privilege level 15.
switchxxxxxx# enable
enter password:**********
switchxxxxxx# Accepted
To end the current configuration session and return to the Privileged EXEC mode, use the end command.
end
This command has no arguments or keywords
None
All configuration modes
The following example ends the Global Configuration mode session and returns to the Privileged EXEC mode.
switchxxxxxx(config)# end
switchxxxxxx#
To exit any mode and bring the user to the next higher mode in the CLI mode hierarchy, use the exit command.
exit
This command has no arguments or keywords
None
All configuration modes
The following examples change the configuration mode from Interface Configuration mode to Privileged EXEC mode.
switchxxxxxx(config-if)# exit
switchxxxxxx(config)# exit
To close an active terminal session by logging off the device, use the exit User EXEC mode command.
exit
This command has no arguments or keywords
User EXEC mode
The following example closes an active terminal session.
switchxxxxxx# exit
To display a brief description of the Help system, use the help command.
help
This command has no arguments or keywords
None
All configuration modes
The following example describes the Help system.
switchxxxxxx# help
Help may be requested at any point in a command by entering a question mark '?'. If nothing matches the currently entered incomplete command, the help list is empty. This indicates that there is no command matching the input as it currently appears. If the request is within a command, press the Backspace key and erase the entered characters to a point where the request results in a match.
Help is provided when:
1. There is a valid command and a help request is made for entering a parameter or argument (e.g. 'show ?'). All possible parameters or arguments for the entered command are then displayed.
2. An abbreviated argument is entered and a help request is made for arguments matching the input (e.g. 'show pr?').
To enable saving commands that have been entered, use the history Line Configuration Mode command. To disable the command, use the no form of this command.
history
no history
This command has no arguments or keywords
Enabled.
Line Configuration Mode
This command enables saving user-entered commands for a specified line. You can return to previous lines by using the up or down arrows.
It is effective from the next time that the user logs in via console/telnet/ssh.
The following are related commands:
Use the terminal history size User EXEC mode command to enable or disable this command for the current terminal session.
Use the history size Line Configuration Mode command to set the size of the command history buffer.
The following example enables the command for Telnet.
switchxxxxxx(config)# line telnet
switchxxxxxx(config-line)# history
To change the maximum number of user commands that are saved in the history buffer for a particular line, use the history size Line Configuration Mode command. To reset the command history buffer size to the default value, use the no form of this command.
history size number-of-commands
no history size
number-of-commands—Specifies the number of commands the system records in its history buffer.
The default command history buffer size is 10 commands.
Line Configuration Mode
This command configures the command history buffer size for a particular line. It is effective from the next time that the user logs in via console/telnet/ssh.
Use the terminal history size User EXEC mode command to configure the command history buffer size for the current terminal session.
The allocated command history buffer is per terminal user, and is taken from a shared buffer. If there is not enough space available in the shared buffer, the command history buffer size cannot be increased above the default size.
The following example changes the command history buffer size to 100 entries for Telnet.
switchxxxxxx(config)# line telnet
switchxxxxxx(config-line)# history size 100
To enable changing the user that is logged in, use the login User EXEC mode command. When this command is logged in, the user is prompted for a username/password.
login
This command has no arguments or keywords
User EXEC mode
The following example enters Privileged EXEC mode and logs in with the required username ‘bob’.
switchxxxxxx# login
User Name:bob
Password:*****
switchxxxxxx#
To enable dumping all the output of a show command without prompting, use the terminal datadump User EXEC mode command. To disable dumping, use the no form of this command.
terminal datadump
terminal no datadump
This command has no arguments or keywords
When printing, dumping is disabled and printing is paused every 24 lines.
User EXEC mode
By default, a More prompt is displayed when the output contains more than 24 lines. Pressing the Enter key displays the next line; pressing the Spacebar displays the next screen of output.
The terminal datadump command enables dumping all output immediately after entering the show command by removing the pause.
The width is not limited, and the width of the line being printed on the terminal is based on the terminal itself.
This command is relevant only for the current session.
The following example dumps all output immediately after entering a show command.
switchxxxxxx# terminal datadump
To enable the command history function for the current terminal session, meaning that it will not be stored in the Running Configuration file, use the terminal history User EXEC mode command. To disable the command, use the no form of this command.
terminal history
terminal no history
This command has no arguments or keywords
The default configuration for all terminal sessions is defined by the history Line Configuration Mode command.
User EXEC mode
The command enables the command history for the current session. The default is determined by the history Line Configuration Mode command.
This command is effective immediately.
The following example disables the command history function for the current terminal session.
switchxxxxxx# terminal no history
To change the command history buffer size for the current terminal session, meaning it will not be stored in the Running Configuration file, use the terminal history size User EXEC mode command. , use the no form of this command to reset the command history buffer size to the default value.
terminal history size number-of-commands
terminal no history size
number-of-commands—Specifies the number of commands the system maintains in its history buffer. (Range: 10–206)
The default configuration for all terminal sessions is defined by the history size Line Configuration Mode command.
User EXEC mode
The terminal history size EXEC command changes the command history buffer size for the current terminal session. Use the history Line Configuration Mode command to change the default history buffer size.
The maximum number of commands in all buffers is 207.
The following example sets the command history buffer size to 20 commands for the current terminal session.
switchxxxxxx# terminal history size 20
To enable the terminal prompts, use the terminal prompt User EXEC mode command. To disable the terminal prompts, use terminal no prompt command.
The command is per session and will not be saved in the configuration database.
terminal prompt
terminal no prompt
This command has no arguments or keywords
The default configuration is prompts enabled.
Privileged EXEC mode
The following example disables the terminal prompts
switchxxxxxx# terminal no prompt
To determine the width of the display for the echo input to CLI sessions, use the terminal width User EXEC mode command. To return to the default, use terminal no width.
The command is per session and will not be saved in the configuration database.
terminal width number-of-characters
terminal no width
number-of-characters - Specifies the number of characters to be displayed for the echo output of the CLI commands and the configuration file,'0' means endless number of characters on a screen line. (Range: 0, 70-512)
The default number of characters is 77.
Privileged EXEC mode
The following example sets the terminal width to 100 characters
switchxxxxxx# terminal width 100
To display the banners that have been defined, use the show banner commands in User EXEC mode.
show banner login
show banner exec
This command has no arguments or keywords
User EXEC mode
switchxxxxxx# show banner login
-------------------------------------------------------------Banner: Login
Line SSH: Enabled
Line Telnet: Enabled
Line Console: Enabled
switchxxxxxx# show banner exec
Banner: EXEC
Line SSH: Enabled
Line Telnet: Enabled
Line Console: Enabled
You have logged on
To list the commands entered in the current session, use the show history User EXEC mode command.
show history
This command has no arguments or keywords
User EXEC mode
The buffer includes executed and unexecuted commands.
Commands are listed from the first to the most recent command.
The buffer remains unchanged when entering into and returning from configuration modes.
The following example displays all the commands entered while in the current Privileged EXEC mode.
switchxxxxxx# show version
SW version 3.131 (date 23-Jul-2005 time 17:34:19)
HW version 1.0.0
switchxxxxxx# show clock
15:29:03 Jun 17 2005
switchxxxxxx# show history
show version
show clock
show history
3 commands were logged (buffer size is 10)
To display the current privilege level, use the show privilege User EXEC mode command.
show privilege
This command has no arguments or keywords
User EXEC mode
The following example displays the privilege level for the user logged on.
switchxxxxxx# show privilege
Current privilege level is 15
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