Using Command Line Online Help
When entering command lines, you can enter a question mark (?) at any time to obtain online help. You can choose to obtain full help or partial help.
Full Help
When entering a command, you can use the full help function to obtain keywords and parameters for the command. Use any of the following methods to obtain full help from a command line.
- Enter a question mark (?) in any command view to obtain all the
commands and their simple descriptions. For example:
<Huawei> ? User view commands: autosave <Group> autosave command group backup Backup information cd Change current directory clear Clear clock Specify the system clock cls Clear screen compare Compare configuration file copy Copy from one file to another ...
- Enter some keywords of a command and
a question mark (?) separated by a space. All keywords associated
with this command, as well as simple descriptions, are displayed.
For example:
<Huawei> system-view [Huawei] user-interface vty 0 4 [Huawei-ui-vty0-4] authentication-mode ? aaa AAA authentication password Authentication through the password of a user terminal interface [Huawei-ui-vty0-4] authentication-mode aaa ? <cr> Please press ENTER to execute command [Huawei-ui-vty0-4] authentication-mode aaa
"aaa" and "password" are keywords. "AAA authentication" and "Authentication through the password of a user terminal interface" describe the keywords respectively.
<cr> indicates that there is no keyword or parameter in this position. You can press Enter to run this command.
- Enter some keywords of a command and a question mark (?) separated
by a space. All parameters associated with this keyword, as well as
simple descriptions, are listed. For example:
<Huawei> system-view [Huawei] ftp timeout ? INTEGER<1-35791> The value of FTP timeout (in minute) [Huawei] ftp timeout 35 ? <cr> Please press ENTER to execute command [Huawei] ftp timeout 35
"INTEGER<1-35791>" describes the value range of the parameter. "The value of FTP timeout (in minutes)" briefly describes the function of this parameter.
Partial Help
If you enter only the first or first several characters of a command keyword, partial help provides keywords that begin with this character or character string. Use any of the following methods to obtain partial help from a command line.
Enter a character string followed directly by a question mark (?) to display all keywords that begin with this character string. For example:
<Huawei> d? debugging <Group> debugging command group delete Delete a file dir List files on a filesystem display Display information <Huawei>d
Enter a command and a string followed directly by a question mark (?) to display all the keywords that begin with this string. For example:
<Huawei> display b? binding Display binding relation of profile bridge Bridge MAC bridge-link Bridge link bridge-profile Display Bridge profile bridge-whitelist Bridge Whitelist
- Enter the first several letters of a keyword in a command and press Tab to display a complete keyword. The first several letters, however, must uniquely identify the keyword. If they do not identify a specific keyword, press Tab continuously to display different keywords and you can select one as required.
The command output obtained through the online help function is used for reference only.
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