Filter
Top Products
Chapter 4 Command-Line Reference 4-7
4.1.2.6 Partial Keyword Lookup
If you terminate a partial keyword with a question mark, alternatives that match the
initial letters are provided. (Remember not to leave a space between the command
and question mark.) For example s? shows all the keywords starting with “s.”
4.1.2.7 Negating the Effect of Commands
For many configuration commands you can enter the prefix keyword no to cancel
the effect of a command or reset the configuration to the default value. For example,
the logging command logs system messages to a host server. To disable logging,
specify the no logging command. This guide describes the negation effect for all
applicable commands.
4.1.2.8 Using Command History
The CLI maintains a history of commands that have been entered. You can scroll
back through the history of commands by pressing the up arrow key. Any command
displayed in the history list can be executed again, or first modified and then
executed.
Using the show history command displays a longer list of recently executed
commands.
4.1.2.9 Understanding Command Modes
The command set is divided into Exec and Configuration classes. Exec commands
generally display information on system status or clear statistical counters.
Configuration commands, on the other hand, modify interface parameters or enable
certain switching functions. These classes are further divided into different modes.
Available commands depend on the selected mode. You can always type a question
Console#show s?
snmp spanning-tree startup-config system