01-Fundamentals

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01-CLI commands
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Basic CLI commands

alias

Use alias to configure a command alias.

Use undo alias to delete a command alias.

Syntax

alias alias command

undo alias alias

Default

The device has a set of system-defined command aliases, as listed in Table 1.

Table 1 System-defined command aliases

Command alias

Command or command keyword

access-list

acl

end

return

erase

delete

exit

quit

hostname

sysname

logging

info-center

no

undo

show

display

write

save

 

Views

System view

Predefined user roles

network-admin

Parameters

alias: Specifies an alias, a case-sensitive string of 1 to 20 characters. An alias cannot be alias or contain spaces.

command: Specifies a command string. Make sure the command string meets the syntax requirements.

Usage guidelines

You can configure an alias for a command or the starting keywords of commands. Then, you can use the alias to execute the command or commands. If the command or commands have undo forms, you can also use the alias to execute the undo command or commands.

For example, if you configure the alias siprt for display ip routing-table, you can enter siprt to execute the display ip routing-table command. If you configure the alias ship for display ip, you can use ship to execute all commands that start with display ip:

·     Enter ship routing-table to execute the display ip routing-table command.

·     Enter ship interface to execute the display ip interface command.

The command string can include up to nine parameters. Each parameter starts with the dollar sign ($) and a sequence number in the range of 1 to 9. For example, you can configure the alias shinc for the display ip $1 | include $2 command. Then, to execute the display ip interface | include GigabitEthernet1/0/1 command, you only need to enter shinc interface GigabitEthernet1/0/1.

Examples

# Configure the alias shiprt for the display ip routing-table command and verify the configuration.

<Sysname> system-view

[Sysname] alias shiprt display ip routing-table

[Sysname] shiprt

Destinations : 13        Routes : 13

Destination/Mask   Proto   Pre Cost        NextHop         Interface

0.0.0.0/32         Direct  0   0           127.0.0.1       InLoop0

3.3.3.3/32         Static  60  0           192.168.1.62    GE1/0/1

127.0.0.0/8        Direct  0   0           127.0.0.1       InLoop0

127.0.0.0/32       Direct  0   0           127.0.0.1       InLoop0

127.0.0.1/32       Direct  0   0           127.0.0.1       InLoop0

127.255.255.255/32 Direct  0   0           127.0.0.1       InLoop0

169.254.0.0/24     Direct  0   0           169.254.0.188   GE1/0/1

169.254.0.0/32     Direct  0   0           169.254.0.188   GE1/0/1

169.254.0.188/32   Direct  0   0           127.0.0.1       InLoop0

169.254.0.255/32   Direct  0   0           169.254.0.188   GE1/0/1

224.0.0.0/4        Direct  0   0           0.0.0.0         NULL0

224.0.0.0/24       Direct  0   0           0.0.0.0         NULL0

255.255.255.255/32 Direct  0   0           127.0.0.1       InLoop0

# Configure the alias shinc for display ip $1 | include $2.

<Sysname> system-view

[Sysname] alias shinc display ip $1 | include $2

# Use the alias shinc to display all static routes.

<Sysname> system-view

[Sysname] shinc routing-table Static

3.3.3.3/32         Static  60  0           192.168.1.62    GE1/0/1

Related commands

display alias

display | { begin | exclude | include }

Use display | { begin | exclude | include } to filter the output from a display command with a regular expression.

Syntax

display command | { begin | exclude | include } regular-expression

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

command: Specifies the keywords and arguments of a display command. To display available keywords and arguments, enter display ?.

begin: Displays the first line matching the specified regular expression and all subsequent lines.

exclude: Displays all lines not matching the specified regular expression.

include: Displays all lines matching the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Usage guidelines

Use the | { begin | exclude | include } regular-expression option with a display command to filter the command output. For more information about regular expressions, see Fundamentals Configuration Guide.

Examples

# Display the lines that contain vlan in the running configuration.

<Sysname> display current-configuration | include vlan

vlan 1

vlan 999

 port access vlan 999

display | by-linenum

Use display | by-linenum to number each output line for a display command.

Syntax

display command | by-linenum

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

command: Specifies the keywords and arguments of a display command. To display available keywords and arguments, enter display ?.

Usage guidelines

By numbering each output line from a display command, you can easily identify the lines of interest.

Each line number is displayed as a 5-character string and might be followed by a colon (:) or hyphen (-). If you specify both | by-linenum and | begin regular-expression for a display command, a hyphen is displayed for all lines that do not match the regular expression.

Examples

# Display VLAN 999 settings, with each output line identified by a number.

<Sysname> display vlan 999 | by-linenum

    1:  VLAN ID: 999

    2:  VLAN type: Static

    3:  Route interface: Configured

    4:  IPv4 address: 192.168.2.1

    5:  IPv4 subnet mask: 255.255.255.0

    6:  Description: For LAN Access

    7:  Name: VLAN 0999

    8:  Tagged ports:   None

    9:  Untagged ports:

   10:     GigabitEthernet1/0/1

# Display the first line that begins with user-group in the running configuration and all of the following lines.

<Sysname> display current-configuration | by-linenum begin user-group

  114:  user-group system

  115-  #

  116-  return

display >

Use display > to save the output from a display command to a separate file.

Syntax

display command > filename

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

command: Specifies the keywords and arguments of a display command. To display available keywords and arguments, enter display ?.

filename: Specifies the name of the file that is used to save the output, a string of 1 to 63 characters.

Usage guidelines

The display commands show the configuration, statistics, and states of the device. You can use the display > command to save the output to a file.

If the specified file does not exist, the system creates the file and saves the output to the file. If the file already exists, the system overwrites the file.

Examples

# Save VLAN 1 settings to a separate file named vlan.txt.

<Sysname> display vlan 1 > vlan.txt

# Verify the content of the vlan.txt file.

<Sysname> more vlan.txt

VLAN ID: 1

 VLAN type: Static

 Route interface: Not configured

 Description: VLAN 0001

 Name: VLAN 0001

 Tagged ports:   None

 Untagged ports:

    GigabitEthernet1/0/2

display >>

Use display >> to append the output from a display command to the end of a file.

Syntax

display command >> filename

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

command: Specifies the keywords and arguments of a display command. To display available keywords and arguments, enter display ?.

filename: Specifies the name of the file that is used to save the output, a string of 1 to 63 characters.

Usage guidelines

The display commands show the configuration, statistics, and states of the device. You can use display >> to save the output to a file.

If the specified file does not exist, the system creates the file and saves the output to the file. If the file already exists, the system appends the output to the end of the file.

Examples

# Append the VLAN 999 settings to the end of the vlan.txt file.

<Sysname> display vlan 999 >> vlan.txt

<Sysname>

# Check the content of the vlan.txt file.

<Sysname> more vlan.txt

VLAN ID: 1

 VLAN type: Static

 Route interface: Not configured

 Description: VLAN 0001

 Name: VLAN 0001

 Tagged ports:   None

 Untagged ports:

    GigabitEthernet1/0/2

 

 VLAN ID: 999

 VLAN type: Static

 Route interface: Configured

 IPv4 address: 192.168.2.1

 IPv4 subnet mask: 255.255.255.0

 Description: For LAN Access

 Name: VLAN 0999

 Tagged ports:   None

 Untagged ports:

    GigabitEthernet1/0/1

display alias

Use display alias to display command aliases.

Syntax

display alias [ alias ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

alias: Specifies a command alias. If you do not specify this argument, the command displays all command aliases.

Examples

# Display all command aliases.

<Sysname> display alias

Index     Alias                Command key

1         access-list          acl

2         end                  return

3         erase                delete

4         exit                 quit

5         hostname             sysname

6         logging              info-center

7         no                   undo

8         shinc                display $1 | include $2

9         show                 display

10        sirt                 display ip routing-table

11        write                save

# Display the command alias shinc.

<Sysname> display alias shinc

Alias                Command key

shinc                display ip $1 | include $2

Related commands

alias

display history-command

Use display history-command to display all commands that are saved in the command history buffer for the current CLI session.

Syntax

display history-command

Views

Any view

Predefined user roles

network-admin

network-operator

Usage guidelines

The system automatically saves commands you have successfully executed to the command history buffer for the current CLI session. You can view them and execute them again.

By default, the system can save up to 10 commands in the buffer. You can use the history-command max-size command to change the buffer size.

Examples

# Display all commands saved in the command history buffer for the current CLI session.

<Sysname> display history-command

  system-view

  vlan 2

  quit

Related commands

history-command max-size

display history-command all

Use display history-command all to display all commands saved in the command history buffer for all CLI sessions.

Syntax

display history-command all

Views

Any view

Predefined user roles

network-admin

Usage guidelines

The system automatically saves commands successfully executed by users to the command history buffer for all CLI sessions. Users can view them and execute them again.

Up to 1024 commands can be saved in the command history buffer. When this number is reached, the system deletes the earliest commands  to make room for newly executed commands.

Examples

# Display all commands saved in the command history buffer for all CLI sessions.

<Sysname> display history-command all

  Date       Time     Terminal   Ip              User

  03/16/2017 20:03:33 vty0       192.168.1.26    **

  Cmd:dis his all

 

  03/16/2017 20:03:29 vty0       192.168.1.26    **

  Cmd:sys

Related commands

display history-command

display hotkey

Use display hotkey to display hotkey information.

Syntax

display hotkey

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display hotkey information.

<Sysname> display hotkey

----------------- Hotkeys -----------------

           -Defined command hotkeys-

CTRL_G display current-configuration

CTRL_L display ip routing-table

CTRL_O undo debugging all

 

           -Undefined command hotkeys-

CTRL_T NULL

CTRL_U NULL

 

           -System-reserved hotkeys-

CTRL_A  Move the cursor to the beginning of the line.

CTRL_B  Move the cursor one character to the left.

CTRL_C  Stop the current command.

CTRL_D  Erase the character at the cursor.

CTRL_E  Move the cursor to the end of the line.

CTRL_F  Move the cursor one character to the right.

CTRL_H  Erase the character to the left of the cursor.

CTRL_K  Abort the connection request.

CTRL_N  Display the next command in the history buffer.

CTRL_P  Display the previous command in the history buffer.

CTRL_R  Redisplay the current line.

CTRL_V  Paste text from the clipboard.

CTRL_W  Delete the word to the left of the cursor.

CTRL_X  Delete all characters from the beginning of the line to the cursor.

CTRL_Y  Delete all characters from the cursor to the end of the line.

CTRL_Z  Return to the User View.

CTRL_]  Kill incoming connection or redirect connection.

ESC_B   Move the cursor back one word.

ESC_D   Delete all characters from the cursor to the end of the word.

ESC_F   Move the cursor forward one word.

ESC_N   Move the cursor down a line.

ESC_P   Move the cursor up a line.

ESC_<   Move the cursor to the beginning of the clipboard.

ESC_>   Move the cursor to the end of the clipboard.

Related commands

hotkey

hotkey

Use hotkey to assign a command to a configurable hotkey.

Use undo hotkey to restore the default.

Syntax

hotkey { CTRL_G | CTRL_L | CTRL_O | CTRL_T | CTRL_U } command

undo hotkey { CTRL_G | CTRL_L | CTRL_O | CTRL_T | CTRL_U }

Default

·     Ctrl_G: display current-configuration (display the running configuration).

·     Ctrl_L: display ip routing-table (display the IPv4 routing table information).

·     Ctrl_O: undo debugging all (disable all debugging functions).

·     Ctrl_T: No command is assigned to this hotkey.

·     Ctrl_U: No command is assigned to this hotkey.

Views

System view

Predefined user roles

network-admin

Parameters

CTRL_G: Assigns a command to Ctrl+G.

CTRL_L: Assigns a command to Ctrl+L.

CTRL_O: Assigns a command to Ctrl+O.

CTRL_T: Assigns a command to Ctrl+T.

CTRL_U: Assigns a command to Ctrl+U.

command: Specifies the command to be assigned to the hotkey.

Usage guidelines

The system defines some hotkeys and provides five configurable command hotkeys. Pressing a hotkey executes the command assigned to the hotkey.

To display system-defined and configurable hotkeys, use the display hotkey command.

Examples

# Assign the display tcp statistics command to the hotkey Ctrl+T.

<Sysname> system-view

[Sysname] hotkey ctrl_t display tcp statistics

Related commands

display hotkey

quit

Use quit to return to the upper-level view.

Syntax

quit

Views

Any view

Predefined user roles

network-admin

network-operator

Usage guidelines

Executing this command in user view disconnects you from the device.

Examples

# Return from GigabitEthernet 1/0/1 interface view to system view and then to user view.

[Sysname-GigabitEthernet1/0/1] quit

[Sysname] quit

<Sysname>

repeat

Use repeat to repeat commands in the command history buffer for the current CLI session..

Syntax

repeat [ number ] [ count times ] [ delay seconds ]

Views

Any view

Predefined user roles

network-admin

Parameters

number: Specifies the number of the most recently executed commands in the history buffer for the current CLI session. that you want to execute. The value range is 1 to 10. The default is 1.

count times: Specifies the number of times that you want to execute the commands. The value range is 0 to 4294967295. The default is 0. If you do not specify this option, the system keeps executing the commands until you terminate the execution.

delay seconds: Specifies the time (in seconds) that the system waits before executing the commands again. The value range is 0 to 4294967295. The default is 1.

Usage guidelines

To terminate the execution of commands, press the escape key.

The repeat command executes commands in the order they were executed.

The system waits for your interaction when it repeats an interactive command.

Examples

# Configure the system to execute the two most recently executed commands (display cpu and display clock) twice at an interval of 10 seconds.

<Sysname> repeat 2 count 2 delay 10

<Sysname> display cpu

Unit CPU usage:

      33% in last 5 seconds

      32% in last 1 minute

      33% in last 5 minutes

                                                                                

<Sysname> display clock

12:20:08 UTC Thu 03/19/2017

<Sysname> display cpu

Unit CPU usage:

      33% in last 5 seconds

      32% in last 1 minute

      33% in last 5 minutes

                                                                               

<Sysname> display clock

12:20:18 UTC Thu 03/19/2017

Related commands

·     display history-command

·     escape-key

·     history-command max-size

return

Use return to return to user view from any other view.

Syntax

return

Views

Any view except user view

Predefined user roles

network-admin

network-operator

Usage guidelines

Pressing Ctrl+Z has the same effect as the return command.

Examples

# Return to user view from GigabitEthernet 1/0/1 interface view.

[Sysname-GigabitEthernet1/0/1] return

<Sysname>

screen-length disable

Use screen-length disable to disable pausing between screens of output for the current session.

Use undo screen-length disable to enable pausing between screens of output for the current session.

Syntax

screen-length disable

undo screen-length disable

Default

The default depends on the configuration of the screen-length command in user line view.

The following are the default settings for the screen-length command:

·     Pausing between screens of output.

·     Displaying up to 24 lines on a screen.

Views

User view

Predefined user roles

network-admin

Usage guidelines

If you disable pausing between screens of output, all output is displayed. The screen is refreshed continuously until the final screen is displayed.

This command takes effect only for the current session. When you are logged out, the default is restored.

Examples

# Disable pausing between screens of output for the current session.

<Sysname> screen-length disable

Related commands

screen-length

system-view

Use system-view to enter system view from user view.

Syntax

system-view

Views

User view

Predefined user roles

network-admin

network-operator

Examples

# Enter system view from user view.

<Sysname> system-view

System View: return to User View with Ctrl+Z.

[Sysname]