At the command-line interface (CLI), you can enter text commands to configure, manage, and monitor the device. The following text is displayed when you access the CLI:

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* Without the owner's prior written consent, *

* no decompiling or reverse-engineering shall be allowed. *

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You can use different methods to log in to the CLI, including through the console port, Telnet, and SSH. For more information about login methods, see "Login overview."

CLI views

Commands are grouped in different views by feature. To use a command, you must enter its view.

CLI views are hierarchically organized, as shown in Figure 1. Each view has a unique prompt, from which you can identify where you are and what you can do. For example, the prompt [Sysname-vlan100] shows that you are in VLAN 100 view and can configure attributes for that VLAN.

Figure 1 CLI views

You are placed in user view immediately after you log in to the CLI. The user view prompt is <Device-name>, where Device-name indicates the device name. The device name is Sysname by default. You can change it by using the sysname command.

In user view, you can perform the following tasks:

· Perform basic operations including display, debug, file management, FTP, Telnet, clock setting, and reboot.

· Enter system view. The system view prompt is [Device-name].

In system view, you can perform the following tasks:

· Configure settings that affect the device as a whole, such as the daylight saving time, banners, and hotkeys.

· Enter different feature views.

For example, you can perform the following tasks:

¡ Enter interface view to configure interface parameters.

¡ Enter VLAN view to add ports to the VLAN.

¡ Enter user line view to configure login user attributes.

A feature view might have child views. For example, NQA operation view has the child view HTTP operation view.

To display all commands available in a view, enter a question mark (?) at the view prompt.

Entering system view from user view

Task	Command
Enter system view.	system-view

Returning to the upper-level view from any view

Task	Command
Return to the upper-level view from any view.	quit

Executing the quit command in user view terminates your connection to the device.

In public key view, use the peer-public-key end command to return to system view.

Returning to user view

To return directly to user view from any view except Tcl configuration view and Python shell view, use the return command or press Ctrl+Z.

Task	Command
Return directly to user view.	return

To return to user view from Tcl configuration view, use the tclquit command. To return to user view from Python shell view, use the exit() command.

Accessing the CLI online help

The CLI online help is context sensitive. Enter a question mark at any prompt or in any position of a command to display all available options.

To access the CLI online help, use one of the following methods:

· Enter a question mark at a view prompt to display the first keyword of every command available in the view. For example:

<Sysname> ?

User view commands:

archive Archive configuration

arp Address Resolution Protocol (ARP) module

backup Backup operation

...

· Enter a space and a question mark after a command keyword to display all available keywords and arguments.

¡ If the question mark is in the place of a keyword, the CLI displays all possible keywords, each with a brief description. For example:

<Sysname> terminal ?

debugging Enable to display debugging logs on the current terminal

logging Display logs on the current terminal

monitor Enable to display logs on the current terminal

¡ If the question mark is in the place of an argument, the CLI displays the description for the argument. For example:

<Sysname> system-view

[Sysname] interface vlan-interface ?

<1-4094> Vlan-interface interface number

[Sysname] interface vlan-interface 1 ?

<cr>

[Sysname] interface vlan-interface 1

<1-4094> is the value range for the argument. <cr> indicates that the command is complete and you can press Enter to execute the command.

· Enter an incomplete keyword string followed by a question mark to display all keywords starting with that string. The CLI also displays the descriptions for the keywords. For example:

<Sysname> f?

fdisk Partition a storage medium

fixdisk Check and repair a storage medium

format Format a storage medium

free Release a line

ftp Open an FTP connection

<Sysname> display ftp?

ftp FTP module

ftp-server FTP server information

ftp-user FTP user information

Using the undo form of a command

Most configuration commands have an undo form for the following tasks:

· Canceling a configuration.

· Restoring the default.

· Disabling a feature.

For example, the info-center enable command enables the information center. The undo info-center enable command disables the information center.

Entering a command

When you enter a command, you can perform the following tasks:

· Use keys or hotkeys to edit the command line.

· Use abbreviated keywords or keyword aliases.

Editing a command line

To edit a command line, use the keys listed in Table 1 or the hotkeys listed in Table 4. When you are finished, you can press Enter to execute the command.

Table 1 Command line editing keys

Keys	Function
Common keys	If the edit buffer is not full, pressing a common key inserts a character at the cursor and moves the cursor to the right. The edit buffer can store up to 511 characters. Unless the buffer is full, all common characters that you enter before pressing Enter are saved in the edit buffer.
Backspace	Deletes the character to the left of the cursor and moves the cursor back one character.
Left arrow key (←)	Moves the cursor one character to the left.
Right arrow key (→)	Moves the cursor one character to the right.
Up arrow key (↑)	Displays the previous command in the command history buffer.
Down arrow key (↓)	Displays the next command in the command history buffer.
Tab	If you press Tab after typing part of a keyword, the system automatically completes the keyword. · If a unique match is found, the system displays the complete keyword. · If there is more than one match, press Tab multiple times to pick the keyword you want to enter. · If there is no match, the system does not modify what you entered but displays it again in the next line.

The total length of a command line cannot exceed 512 characters, including spaces and special characters.

The device supports the following special commands:

· #–Used by the system in a configuration file as separators for adjacent sections.

· version–Used by the system in a configuration file to indicate the software version information. For example, version 7.1. xxx , Release xxx .

These commands are special because of the following reasons:

· These commands are not intended for you to use at the CLI.

· You can enter these commands in any view, or enter any values for them. For example, you can enter # abc or version abc. However, the settings do not take effect.

· The device does not provide any online help information for these commands.

Entering a text or string type value for an argument

A text type argument value can contain printable characters except a question mark (?).

A string type argument value can contain any printable characters except for question marks (?).

· To include a quotation mark (") or backward slash (\) in a string type argument value, prefix the character with an escape key (\), for example, (\") and (\\).

· To include a blank space in a string type argument value, enclose the value in quotation marks, for example, ''my device''.

A specific argument might have more requirements. For more information, see the relevant command reference.

To enter a printable character, you can enter the character or its ASCII code in the range of 32 to 126.

Entering an interface type

You can enter an interface type in one of the following formats:

· Full spelling of the interface type.

· An abbreviation that uniquely identifies the interface type.

· Acronym of the interface type.

For a command line, all interface types are case insensitive. Table 2 shows the full spellings and acronyms of interface types.

For example, to use the interface command to enter the view of interface Ten-GigabitEthernet 1/0/1, you can enter the command line in the following formats:

· interface ten-gigabitethernet 1/0/1

· interface ten 1/0/1

· interface xge 1/0/1

Spaces between the interface types and interfaces are not required.

Table 2 Full spellings and acronyms of interface types

Full spelling	Acronym
Bridge-Aggregation	BAGG
FortyGigE	FGE
HundredGigE	HGE
InLoopBack	InLoop
LoopBack	Loop
M-GigabitEthernet	MGE
Multicast Tunnel	MTunnel
NULL	NULL
Pex	PEX
Register-Tunnel	REG
Route-Aggregation	RAGG
SAN-Aggregation	SAGG
S-Channel	S-Ch
Schannel-Aggregation	SCH-AGG
Schannel-Bundle	SCH-B
Ten-GigabitEthernet	XGE
Tunnel	Tun
Vfc	Vfc
Vsi-interface	Vsi
Vlan-interface	Vlan-int

Abbreviating commands

You can enter a command line quickly by entering incomplete keywords that uniquely identify the complete command. In user view, for example, commands starting with an s include startup saved-configuration and system-view. To enter the command system-view, you need to type only sy. To enter the command startup saved-configuration, type st s.

You can also press Tab to complete an incomplete keyword.

Configuring and using command aliases

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

For example, if you configure the alias shiprt for display ip routing-table, you can enter shiprt 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 starting 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.

Usage guidelines

After you successfully execute a command by using an alias, the system saves the command, instead of the alias, to the running configuration.

The command string represented by an alias can include a maximum of 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 $1 | include $2 command. Then, you can enter shinc hotkey CTRL_C to execute the display hotkey | include CTRL_C command.

To use an alias for a command that has parameters, you must specify a value for each parameter. If you fail to do so, the system informs you that the command is incomplete and displays the command string represented by the alias.

The device has a set of system-defined command aliases, as listed in Table 3. System-defined command aliases cannot be deleted.

Table 3 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

Configuration procedure

To configure a command alias:

Step	Command	Remarks
1. Enter system view.	system-view	N/A
2. Configure a command alias.	alias alias command	By default, the device has a set of command aliases, as listed in Table 3.
3. (Optional.) Display command aliases.	display alias [ alias ]	This command is available in any view.

Configuring hotkeys

The system supports 29 hotkeys. Pressing a hotkey executes the command or function assigned to the hotkey.

Table 4 shows the default definitions for the hotkeys. You can change or remove hotkey definitions.

A hotkey can correspond to only one command or function. If you assign multiple commands or functions to the same hotkey, the most recently assigned command or function takes effect.

A command or function can be assigned to multiple hotkeys. You can use any of the hotkeys to execute the command or function.

If a hotkey is also defined by the terminal software you are using to interact with the device, the terminal software definition takes effect.

To configure a hotkey:

Step	Command	Remarks
1. Enter system view.	system-view	N/A
2. Configure a hotkey.	hotkey hotkey { command \| function function \| none }	Table 4 shows the default definitions for the hotkeys.
3. (Optional.) Display hotkeys.	display hotkey	This command is available in any view.

Table 4 Default definitions for hotkeys

Hotkey	Function or command
Ctrl+A	move_the_cursor_to_the_beginning_of_the_line: Moves the cursor to the beginning of a line.
Ctrl+B	move_the_cursor_one_character_to_the_left: Moves the cursor one character to the left.
Ctrl+C	stop_the_current_command: Stops the current command.
Ctrl+D	erase_the_character_at_the_cursor: Deletes the character at the cursor.
Ctrl+E	move_the_cursor_to_the_end_of_the_line: Moves the cursor to the end of a line.
Ctrl+F	move_the_cursor_one_character_to_the_right: Moves the cursor one character to the right.
Ctrl+G	display current-configuration
Ctrl+H	erase_the_character_to_the_left_of_the_cursor: Deletes the character to the left of the cursor.
Ctrl+K	abort_the_connection_request: Aborts the connection request.
Ctrl+L	display ip routing-table
Ctrl+N	display_the_next_command_in_the_history_buffer: Displays the next command in the history buffer.
Ctrl+O	undo debugging all
Ctrl+P	display_the_previous_command_in_the_history_buffer: Displays the previous command in the history buffer.
Ctrl+R	redisplay_the_current_line: Redisplays the current line.
Ctrl+T	N/A
Ctrl+U	N/A
Ctrl+V	paste_text_from_the_clipboard: Pastes text from the clipboard.
Ctrl+W	delete_the_word_to_the_left_of_the_cursor: Deletes the word to the left of the cursor.
Ctrl+X	delete_all_characters_from_the_beginning_of_the_line_to_the_cursor: Deletes all characters to the left of the cursor.
Ctrl+Y	delete_all_characters_from_the_cursor_to_the_end_of_the_line: Deletes all characters from the cursor to the end of the line.
Ctrl+Z	return_to_the_User_View: Returns to user view.
Ctrl+]	kill_incoming_connection_or_redirect_connection: Terminates the current connection.
Esc+B	move_the_cursor_back_one_word: Moves the cursor back one word.
Esc+D	delete_all_characters_from_the_cursor_to_the_end_of_the_word: Deletes all characters from the cursor to the end of the word.
Esc+F	move_the_cursor_forward_one_word: Moves the cursor forward one word.
Esc+N	move_the_cursor_down_a_line: Moves the cursor down one line. You can use this hotkey before pressing Enter.
Esc+P	move_the_cursor_up_a_line: Moves the cursor up one line. You can use this hotkey before pressing Enter.
Esc+<	move_the_cursor_to_the_beginning_of_the_clipboard: Moves the cursor to the beginning of the clipboard.
Esc+>	move_the_cursor_to_the_end_of_the_clipboard: Moves the cursor to the end of the clipboard.

Enabling redisplaying entered-but-not-submitted commands

Your input might be interrupted by system information output. If redisplaying entered-but-not-submitted commands is enabled, the system redisplays your input after finishing the output. You can then continue entering the command line.

To enable redisplaying entered-but-not-submitted commands:

Step	Command	Remarks
1. Enter system view.	system-view	N/A
2. Enable redisplaying entered-but-not-submitted commands.	info-center synchronous	By default, the system does not redisplay entered-but-not-submitted commands. For more information about this command, see Network Management and Monitoring Command Reference.

Step

Command

Remarks

1. Enter system view.

system-view

N/A

2. Enable redisplaying entered-but-not-submitted commands.

info-center synchronous

By default, the system does not redisplay entered-but-not-submitted commands.

For more information about this command, see Network Management and Monitoring Command Reference.

Understanding command-line error messages

After you press Enter to submit a command, the command line interpreter examines the command syntax.

· If the command passes syntax check, the CLI executes the command.

· If the command fails syntax check, the CLI displays an error message.

Table 5 Common command-line error messages

Error message	Cause
% Unrecognized command found at '^' position.	The keyword in the marked position is invalid.
% Incomplete command found at '^' position.	One or more required keywords or arguments are missing.
% Ambiguous command found at '^' position.	The entered character sequence matches more than one command.
% Too many parameters.	The entered character sequence contains excessive keywords or arguments.
% Wrong parameter found at '^' position.	The argument in the marked position is invalid.

Using the command history feature

The system automatically saves commands successfully executed by a login user to the following two command history buffers:

· Command history buffer for the user line.

· Command history buffer for all user lines.

Table 6 Comparison between the two types of command history buffers

Item	Command history buffer for a user line	Command history buffer for all user lines
What kind of commands are saved in the buffer?	Commands successfully executed by the current user of the user line.	Commands successfully executed by all login users.
Cleared when the user logs out?	Yes.	No.
How to view buffered commands?	Use the display history-command command.	Use the display history-command all command.
How to recall a buffered command?	· (Method 1.) Navigate to the command in the buffer and press Enter. · (Method 2.) Use the repeat command. For more information, see "Repeating commands in the command history buffer for a line."	You cannot recall buffered commands.
How to set the buffer size?	Use the history-command max-size size-value command in user line view to set the buffer size. By default, the buffer can store up to 10 commands.	You cannot set the buffer size. The buffer can store up to 1024 commands.
How to disable the buffer?	Setting the buffer size to 0 disables the buffer.	You cannot disable the buffer.

Command buffering rules

The system follows these rules when buffering commands:

· If you use incomplete keywords when entering a command, the system buffers the command in the exact form that you used.

· If you use an alias when entering a command, the system transforms the alias to the represented command or command keywords before buffering the command.

· If you enter a command in the same format multiple times in succession, the system buffers the command only once. If you enter a command in different formats multiple times, the system buffers each command format. For example, display cu and display current-configuration are buffered as two entries but successive repetitions of display cu create only one entry.

· To buffer a new command when a buffer is full, the system deletes the oldest command entry in the buffer.

Repeating commands in the command history buffer for a line

You can recall and execute commands in the command history buffer for the current user line multiple times.

To repeat commands in the command history buffer for the current user line:

Task	Command	Remarks
Repeat commands in the command history buffer for the current CLI session.	repeat [ number ] [ count times ] [ delay seconds ]	This command is available in any view. However, to repeat a command, you must first enter the view for the command. To repeat multiple commands, you must first enter the view for the first command. This command executes commands in the order they were executed. The system waits for your interaction when it repeats an interactive command.

Task

Command

Remarks

Repeat commands in the command history buffer for the current CLI session.

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

This command is available in any view. However, to repeat a command, you must first enter the view for the command. To repeat multiple commands, you must first enter the view for the first command.

This command executes commands in the order they were executed.

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

Controlling the CLI output

This section describes the CLI output control features that help you identify the desired output.

Pausing between screens of output

By default, the system automatically pauses after displaying a maximum of 24 lines if the output is too long to fit on one screen. You can change the limit by using the screen-length screen-length command. For more information about this command, see Fundamentals Command Reference.

At a pause, the system displays ----more----. You can use the keys described in "Output controlling keys" to display more information or stop the display.

You can also disable pausing between screens of output for the current session. Then, all output is displayed at one time and the screen is refreshed continuously until the final screen is displayed.

Output controlling keys

Keys	Function
Space	Displays the next screen.
Enter	Displays the next line.
Ctrl+C	Stops the display and cancels the command execution.
<PageUp>	Displays the previous page.
<PageDown>	Displays the next page.

Disabling pausing between screens of output

To disable pausing between screens of output, execute the following command in user view:

Task	Command	Remarks
Disable pausing between screens of output for the current CLI session.	screen-length disable	By default, a CLI session uses the screen-length screen-length command settings in user line view. This command is a one-time command and takes effect only for the current CLI session.

Task

Command

Remarks

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

screen-length disable

By default, a CLI session uses the screen-length screen-length command settings in user line view.

This command is a one-time command and takes effect only for the current CLI session.

Numbering each output line from a display command

You can use the | by-linenum option to prefix each display command output line with a number for easy identification.

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.

To number each output line from a display command:

Task	Command
Number each output line from a display command.	display command \| by-linenum

For example:

# Display information about VLAN 999, numbering each output line.

<Sysname> display vlan 999 | by-linenum

1: VLAN ID: 999

2: VLAN type: Static

3: Route interface: Not configured

4: Description: VLAN 0999

5: Name: VLAN 0999

6: Tagged ports: None

7: Untagged ports: None

Filtering the output from a display command

You can use the | { begin | exclude | include } regular-expression option to filter the display command output.

· 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—A case-sensitive string of 1 to 256 characters, which can contain the special characters described in Table 7.

The required filtering time increases with the complexity of the regular expression. To abort the filtering process, press Ctrl+C.

Table 7 Special characters supported in a regular expression

Characters	Meaning	Examples
^	Matches the beginning of a line.	"^u" matches all lines beginning with "u". A line beginning with "Au" is not matched.
$	Matches the end of a line.	"u$" matches all lines ending with "u". A line ending with "uA" is not matched.
. (period)	Matches any single character.	".s" matches "as" and "bs".
*	Matches the preceding character or string zero, one, or multiple times.	"zo" matches "z" and "zoo", and "(zo)" matches "zo" and "zozo".
+	Matches the preceding character or string one or multiple times.	"zo+" matches "zo" and "zoo", but not "z".
\|	Matches the preceding or succeeding string.	"def\|int" matches a line containing "def" or "int".
( )	Matches the string in the parentheses, usually used together with the plus sign (+) or asterisk sign (*).	"(123A)" matches "123A". "408(12)+" matches "40812" and "408121212", but not "408".
\N	Matches the preceding strings in parentheses, with the Nth string repeated once.	"(string)\1" matches a string containing "stringstring". "(string1)(string2)\2" matches a string containing "string1string2string2". "(string1)(string2)\1\2" matches a string containing " string1string2string1string2".
[ ]	Matches a single character in the brackets.	"[16A]" matches a string containing 1, 6, or A; "[1-36A]" matches a string containing 1, 2, 3, 6, or A (- is a hyphen). To match the character "]", put it immediately after "[", for example, []abc]. There is no such limit on "[".
[^]	Matches a single character that is not in the brackets.	"[^16A]" matches a string that contains one or more characters except for 1, 6, or A, such as "abc". A match can also contain 1, 6, or A (such as "m16"), but it cannot contain these three characters only (such as 1, 16, or 16A).
{n}	Matches the preceding character n times. The number n must be a nonnegative integer.	"o{2}" matches "food", but not "Bob".
{n,}	Matches the preceding character n times or more. The number n must be a nonnegative integer.	"o{2,}" matches "foooood", but not "Bob".
{n,m}	Matches the preceding character n to m times or more. The numbers n and m must be nonnegative integers and n cannot be greater than m.	" o{1,3}" matches "fod", "food", and "foooood", but not "fd".
\<	Matches a string that starts with the pattern following \<. A string that contains the pattern is also a match if the characters preceding the pattern are not digits, letters, or underscores.	"\<do" matches "domain" and "doa".
\>	Matches a string that ends with the pattern preceding \>. A string that contains the pattern is also a match if the characters following the pattern are not digits, letters, or underscores.	"do\>" matches "undo" and "cdo".
\b	Matches a word that starts with the pattern following \b or ends with the pattern preceding \b.	"er\b" matches "never", but not "verb" or "erase". "\ber" matches "erase", but not "verb" or "never".
\B	Matches a word that contains the pattern but does not start or end with the pattern.	"er\B" matches "verb", but not "never" or "erase".
\w	Same as [A-Za-z0-9_], matches a digit, letter, or underscore.	"v\w" matches "vlan" and "service".
\W	Same as [^A-Za-z0-9_], matches a character that is not a digit, letter, or underscore.	"\Wa" matches "-a", but not "2a" or "ba".
\	Escape character. If a special character listed in this table follows \, the specific meaning of the character is removed.	"\\" matches a string containing "\", "\^" matches a string containing "^", and "\\b" matches a string containing "\b".

For example:

# Display the running configuration, starting from the first configuration line that contains line.

<Sysname> display current-configuration | begin line

line class aux

user-role network-admin

line class vty

user-role network-operator

line aux 0

user-role network-admin

line vty 0 63

authentication-mode none

user-role network-admin

user-role network-operator

...

# Display brief information about interfaces in up state.

<Sysname> display interface brief | exclude DOWN

Brief information on interfaces in route mode:

Link: ADM - administratively down; Stby - standby

Protocol: (s) - spoofing

Interface Link Protocol Primary IP Description

InLoop0 UP UP(s) --

NULL0 UP UP(s) --

Vlan1 UP UP 192.168.1.83

Brief information on interfaces in bridge mode:

Link: ADM - administratively down; Stby - standby

Speed: (a) - auto

Duplex: (a)/A - auto; H - half; F - full

Type: A - access; T - trunk; H - hybrid

Interface Link Speed Duplex Type PVID Description

XGE1/0/1 UP 10G(a) F(a) A 1

# Display SNMP-related running configuration lines.

<Sysname> display current-configuration | include snmp

snmp-agent

snmp-agent community write private

snmp-agent community read public

snmp-agent sys-info version all

snmp-agent target-host trap address udp-domain 192.168.1.26 params securityname public

Saving the output from a display command to a file

A display command shows certain configuration and operation information of the device. Its output might vary over time or with user configuration or operation. You can save the output to a file for future retrieval or troubleshooting.

Use one of the following methods to save the output from a display command:

· Save the output to a separate file. Use this method if you want to use one file for a single display command.

· Append the output to the end of a file. Use this method if you want to use one file for multiple display commands.

To save the output from a display command to a file, use one of the following commands in any view:

Task	Command
Save the output from a display command to a separate file.	display command > filename
Append the output from a display command to the end of a file.	display command >> filename

For example:

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

<Sysname> display vlan 1 > vlan.txt

# Verify that the VLAN 1 settings are saved to the file vlan.txt.

<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: None

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

<Sysname> display vlan 999 >> vlan.txt

# Verify that the VLAN 999 settings are appended to the end of the file vlan.txt.

<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: None

VLAN ID: 999

VLAN type: Static

Route interface: Configured

IP address: 192.168.2.1

Subnet mask: 255.255.255.0

Description: For LAN Access

Name: VLAN 0999

Tagged ports: None

Untagged ports: None

Viewing and managing the output from a display command effectively

You can use the following methods in combination to filter and manage the output from a display command:

· Numbering each output line from a display command

· Filtering the output from a display command

· Saving the output from a display command to a file

To use multiple measures to view and manage the output from a display command effectively, execute the following command in any view:

Task	Command
View and manage the output from a display command effectively.	display command [ \| [ by-linenum ] { begin \| exclude \| include } regular-expression ] [ > filename \| >> filename ]

For example:

# Save the running configuration to a separate file named test.txt, with each line numbered.

<Sysname> display current-configuration | by-linenum > test.txt

# Append lines including snmp in the running configuration to the file test.txt.

<Sysname> display current-configuration | include snmp >> test.txt

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

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

114: user-group system

115- #

116- return

// The colon (:) following a line number indicates that the line contains the string user-group. The hyphen (-) following a line number indicates that the line does not contain the string user-group.

Saving the running configuration

To make your configuration take effect after a reboot, save the running configuration to a configuration file by using the save command in any view. This command saves all commands that have been successfully executed, except for the one-time commands. Typical one-time commands include display commands used for displaying information and reset commands used for clearing information.

For more information about the save command, see Fundamentals Command Reference.

01-Fundamentals Configuration Guide

Using the CLI

CLI views

Entering system view from user view

Returning to the upper-level view from any view

Using the undo form of a command

Entering a text or string type value for an argument

Abbreviating commands

Configuring and using command aliases

Usage guidelines

Configuration procedure

Configuring hotkeys

Using the command history feature

Controlling the CLI output

Output controlling keys

Disabling pausing between screens of output

Numbering each output line from a display command

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