3Com 4210 PWR Configuration Manual page 20

18 C 1: CLI C
HAPTER ONFIGURATION
n
Error Prompts
Command Edit
commands and execute them again. By default, the CLI stores up to 10 most
recently executed commands for each user. You can view the command history by
performing the operations listed in Table 6.
Table 6 View history commands
Purpose
Display the latest executed
history commands
Recall the previous history
command
Recall the next history
command
The Windows 9x HyperTerminal defines the up and down arrow keys in a
■
different way, and therefore the two keys are invalid when you access history
commands in such an environment. However, you can use <Ctrl+ P> and
<Ctrl+ N> instead to achieve the same purpose.
When you enter the same command multiple times consecutively, only one
■
history command entry is stored in the CLI.
If a command passes the syntax check, it is executed; otherwise, an error message
displays. Table 7 lists the most common error messages.
Table 7 Common error messages
Error message
Unrecognized command
Incomplete command
Too many parameters
Ambiguous command
Wrong parameter
found at'^' position
The CLI provides basic command edit functions and supports multi-line editing.
The maximum number of characters a command can contain is 254. Table 8 lists
the CLI edit operations.
Table 8 Edit operations
Press...
A common key
Backspace key
Left arrow key or <Ctrl+B>
Operation
Execute the display
history-command command
Press the up arrow key or
<Ctrl+P>
Pressing the down arrow key
or <Ctrl+N>
Description
The command does not exist.
The keyword does not exist.
The parameter type is wrong.
The parameter value is out of range.
The command entered is incomplete.
You entered too many parameters.
The parameters entered are ambiguous.
A parameter entered is wrong.
An error is found at the '^' position.
To...
Insert the corresponding character at the cursor position
and move the cursor one character to the right if the
command is shorter than 254 characters.
Delete the character on the left of the cursor and move
the cursor one character to the left.
Move the cursor one character to the left.
Remarks
This command displays the
command history.
This operation recalls the
previous history command (if
available).
This operation recalls the next
history command (if
available).