3Com 5500-SI Configuration Manual page 41

Displaying Characteristics of the Command Line
The command line interface provides a pausing function. If the information to be
displayed exceeds one screen, users have three choices, as shown in Table 6.
Table 6 Functions of Displaying
Key or Command
Press <Ctrl+C> when the display pauses
Enter a space when the display pauses
Press <Enter> when the display pauses
History Command
The command line interface provides a function similar to that of the DosKey.
Commands entered by users are automatically saved by the command line interface
and you can invoke and execute them at any time later. The history command buffer
is defaulted as 10. That is, the command line interface stores 10 history commands
for each user. The operations are shown in Table 7.
Table 7 Retrieving History Command
Operation
Display history command
Retrieve the previous history
command
Retrieve the next history
command
Cursor keys can be used to retrieve the history commands in Windows 3.X Terminal
and Telnet. However, in Windows 9X HyperTerminal, the up and down cursor keys
and do not work, because Windows 9X HyperTerminal defines the two keys
differently. In this case, use the combination keys <Ctrl+P> and <Ctrl+N> instead for
the same purpose.
Common Command Line Error Messages
Incorrectly entered commands will cause error messages to be reported to users. The
common error messages are listed in Table 8.
Table 8 Common Command Line Error Messages
Error messages
Unrecognized command
Incomplete command
Too many parameters
Ambiguous command
Function
Stop displaying and executing command.
Continue to display the next screen of
information.
Continue to display the next line of
information.
Key
display
history-command
Up cursor key <> or <Ctrl+P> Retrieve the previous history
Down cursor key <> or
<Ctrl+N>
Causes
Cannot find the command
■
Cannot find the keyword
■
Wrong parameter type
■
The value of the parameter exceeds the range
■
The command is incomplete.
Too many parameters have been entered.
The parameters entered are not specific.
Command Line Interface
Result
Display history command by
user inputting
command, if there is any.
Retrieve the next history
command, if there is any.
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