C-3
Cisco Security Appliance Command Line Configuration Guide
OL-10088-01
Appendix C Using the Command-Line Interface
Syntax Formatting
From global configuration mode, some commands enter a command-specific configuration mode.
All user EXEC, privileged EXEC, global configuration, and command-specific configuration
commands are available in this mode. For example, the interface command enters interface
configuration mode. The prompt changes to the following:
hostname(config-if)#
hostname/context(config-if)#
Syntax Formatting
Command syntax descriptions use the following conventions:
Abbreviating Commands
You can abbreviate most commands down to the fewest unique characters for a command; for example,
you can enter
wr t to view the configuration instead of entering the full command write terminal, or
you can enter
en to start privileged mode and conf t to start configuration mode. In addition, you can
enter
0 to represent 0.0.0.0.
Command-Line Editing
The security appliance uses the same command-line editing conventions as Cisco IOS software. You can
view all previously entered commands with the show history command or individually with the up arrow
or ^p command. Once you have examined a previously entered command, you can move forward in the
list with the down arrow or ^n command. When you reach a command you wish to reuse, you can edit
it or press the Enter key to start it. You can also delete the word to the left of the cursor with ^w, or erase
the line with ^u.
The security appliance permits up to 512 characters in a command; additional characters are ignored.
Table C-1 Syntax Conventions
Convention Description
bold Bold text indicates commands and keywords that you enter literally as shown.
italics Italic text indicates arguments for which you supply values.
[x] Square brackets enclose an optional element (keyword or argument).
| A vertical bar indicates a choice within an optional or required set of keywords or
arguments.
[x | y] Square brackets enclosing keywords or arguments separated by a vertical bar indicate
an optional choice.
{x | y} Braces enclosing keywords or arguments separated by a vertical bar indicate a required
choice.
[x {y | z}] Nested sets of square brackets or braces indicate optional or required choices within
optional or required elements. Braces and a vertical bar within square brackets indicate
a required choice within an optional element.
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