Reenter the command followed by a
question mark (?), with a space between
the command and the question mark.
% Invalid input
detected at '^'
marker
You entered the command
incorrectly. The caret (^) marks
the point of the error.
Enter a question mark (?) to display all the
commands or parameters that are
available.
158 Chapter 2: Ethernet LANs
The command history buffer stores the commands that have been most recently entered. To
see these commands, enter the Cisco IOS show history command.
You can use context-sensitive help to determine the syntax of a particular command. For
example, if the device clock needs to be set but the clock command syntax is not known,
the context-sensitive help provides a means to check the syntax for setting the clock.
If the word clock is entered but misspelled, the system performs a symbolic translation of
the misspelled command as parsed by Cisco IOS Software. If no CLI command matches
the string input, an error message is returned. If there is no Cisco IOS command that begins
with the misspelled letters, by default, the device will interpret the misspelled command
as a host name and attempt to resolve the host name to an IP address, and then try to telnet
to that host.
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