5-3
the keywords that match the input characters will be displayed on the terminal screen if the input
characters match more than one keyword.
Command History
CLI can store the latest executed commands as history commands so that users can recall and execute
them again. By default, CLI can store 10 history commands for each user.
Table 5-1 lists history
command-related operations.
Table 5-1 Access history commands
Operation Operation Description
Access the previous
history command
Press the up-arrow key or <Ctrl+P>
This operation recalls the previous
history command (if available).
Access the next
history command
Pressing the down-arrow key or
<Ctrl+N>
This operation recalls the next
history command (if available).
z You may use arrow keys to access history commands in Windows 2000/XP/2003 Terminal or
Telnet. However, the up-arrow and down-arrow keys are invalid in Windows 9X HyperTerminal,
because they are defined in a different way. You can use <Ctrl+P> and <Ctrl+N> instead.
z When you enter the same command several times, only one command is saved by the CLI as a
history command.
Error Messages
If the command you enter passes the syntax check, it will be successfully executed; otherwise an error
message will appear.
Table 5-2 lists the common error messages.
Table 5-2 Common error messages
Error message Description
The command does not exist.
The keyword does not exist.
The parameter type is wrong.
Unrecognized command
The parameter value is out of range.
Incomplete command The command entered is incomplete.
Too many parameters You have entered too many parameters.
Ambiguous command The parameters entered are ambiguous.
Wrong parameter A parameter entered is incorrect.
