Key
Function
Tab
Press
Tab
after typing the incomplete key word and the system
runs the partial help:
l
If the matching key word is unique, the system replaces the
typed one with the complete key word and displays it in a new
line with the cursor a space behind.
l
If there are several matches or no match at all, the system
displays the prefix first. Then you can press
Tab
to view the
matching key word one by one. In this case, the cursor closely
follows the end of the word and you can type a space to enter
the next word.
l
If a wrong key word is entered, press
Tab
and the word is
displayed in a new line.
2.3.2 Displaying
All command lines have the same displaying feature. You can construct the displaying mode as
required.
You can control the display of information on the CLI as follows:
l
If output information cannot be displayed on a full screen, you have three options to view
the information, as shown in
Table 2-4
Keys for displaying
Key
Function
Ctrl_C
Stops the display and running of the command.
Space
Allows information to be displayed on the next screen.
Enter
Allows information to be displayed on the next line.
2.3.3 Regular Expressions
The regular expression is an expression that describes a set of strings. It consists of common
characters (such as letters from "a" to "z") and particular characters (also named metacharacters).
The regular expression is a template according to which you can search for the required string.
Users can use regular expressions to filter output information to rapidly locate desired
information.
A regular expression can provide the following functions:
l
Searching for and obtaining a sub-string that matches a rule in the string.
l
Substituting a string according to a certain matching rule.
Huawei AR2200 Series Enterprise Routers
Configuration Guide - Basic Configuration
2 CLI Overview
Issue 02 (2011-10-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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