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4 command syntax conventions, 5 getting help, 1 list of available commands – ZyXEL Communications ES-2108 User Manual

Page 152: 4 command syntax conventions 27.5 getting help

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ES-2108 Series User’s Guide

152

Chapter 27 Introducing the Commands

27.4 Command Syntax Conventions

The rules of the commands are listed next.

• The command keywords are in

courier new

font.

• The required fields in a command are enclosed in angle brackets <>, for instance,

ping

means that you must specify an IP number for this command.

• The optional fields in a command are enclosed in square brackets [], for instance,

configure snmp-server [contact ] [location
]

means that the

contact

and

location

fields are optional.

• “Command” refers to a command used in the command line interface (CI command).
• The | symbol means “or”.
• The entry

in the command lines refers to carriage return. Press

[ENTER]

or carriage

return after a command to execute the command.

• Use the up (y) or down (z) arrow key to scroll through the command history list.
• The CLI does not accept partial or incomplete commands. You may enter a unique part of

a command and press

[TAB]

to have the switch automatically display the full command.

For example, if you enter “

config

” and press

[TAB]

, the full command of “

configure

automatically displays.

• Each interface refers to an Ethernet port on the switch. Commands configured after the

interface command correspond to those ports.

• Type multiple ports or port ranges separated by a comma. Ranges of port numbers are

typed separated by a dash.

27.5 Getting Help

The system includes a help facility to provide you with the following information about the
commands:

• List of available commands under a command group.
• Detailed descriptions of the commands.

27.5.1 List of Available Commands

Enter “

help

” to display a list of available commands and the corresponding sub commands.

Enter “

?

” to display a list of commands you can use.