D-Link 800 - DFL 800 - Security Appliance, User Manual, Page: 31 / 469

gw-world:/> show Address IP4Address my_address
The second part of the command specifies the object type and is necessary to identify what category
of object the object name refers to (consider that the same name might exist in two different
categories).
Note
The term category is sometimes referred to as the context of an object.
A command like add can also include object properties. To add a new IP4Address object with an IP
address of 10.49.02.01, the command would be:
gw-world:/> add IP4Address my_address Address=10.49.02.01
The object type can be optionally preceded by the object category. A category groups together a set
of types and mainly used with tab completion which is described below.
Note
Typing the CLI command:
gw-world:/> help help
will give information about the help command itself.
The CLI Command History
Just like the console in many versions of Microsoft Windows, the up and down arrow keys allow the
user to move through the list of commands in the CLI command history. For example, pressing the
up arrow key once will make the last command executed appear at the current CLI prompt. After a
command appears it can be re-executed in it's original form or changed first before execution.
Tab Completion
Remembering all the commands and their options can be difficult. NetDefendOS provides a feature
called tab completion which means that pressing the tab key will cause automatically completion of
the current part of the command. If completion is not possible then pressing the tab key will
alternatively display the possible command options that are available.
Tab Completion of Data
A very useful feature with tab completion is the ability to automatically fill in the current values of
data parameters in a command line. This is done by typing a period "." character followed by the tab
key after the "=" character. For example, we may have typed the unfinished command:
set Address IP4Address lan_ip Address=
If we now type "." followed by a tab, NetDefendOS will display the current value for the Address
parameter. If that value is, for example, 10.6.58.10 then the unfinished command line will
automatically become:
set Address IP4Address lan_ip Address=10.6.58.10
NetDefendOS automatically inserts the current value of 10.6.58.10 and this can then be easily
changed with the backspace or back arrow keys before completing the command.
2.1.4. The CLI Chapter 2. Management and Maintenance
31