7
To enable redisplaying entered-but-not-submitted commands:
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enable redisplaying
entered-but-not-submit
ted commands.
info-center synchronous
By default, the system does not redisplay
entered-but-not-submitted commands.
For more information about this command, see
Network Management and Monitoring
Command Reference.
Understanding command-line error messages
After you press Enter to submit a command, the command line interpreter examines the command syntax.
• If the command passes syntax check, the CLI executes the command.
• If the command fails syntax check, the CLI displays an error message.
Table 3 Common command-line error messages
Error messa
e Cause
% Unrecognized command found at '^' position.
The keyword in the marked position is invalid.
% Incomplete command found at '^' position.
One or more required keywords or arguments are
missing.
% Ambiguous command found at '^' position.
The entered character sequence matches more than one
command.
% Too many parameters.
The entered character sequence contains excessive
keywords or arguments.
% Wrong parameter found at '^' position. The argument in the marked position is invalid.
Using the command history function
The system automatically saves commands successfully executed by a login user to two command history
buffers:
• Command history buffer for the user line.
• Command history buffer for all user lines.
Table 4 Comparison between the two types of command history buffers
Item Command history buffer for a user line
Command history buffer for all
user lines
What kind of
commands are stored
in the buffer?
Commands successfully executed by the
current user of the user line.
Commands successfully executed by
all login users.
Cleared when the user
logs out?
Yes. No.
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