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A limited amount of online help is available to command line users via the help command. Help information is accessed by typing the help command, by entering incorrect input during normal command entry, or by entering a ? (question mark) anywhere during command entry.
help [command_string]
command_string | To display help information using the help command, enter help followed by a partial command_string. The parser will display context-sensitive help for the portion of the command string that was parsed. If help is entered with no arguments, general help information is displayed along with all top level commands. |
Help information displayed consists of the valid subcommands of the entered command_string. Or, if the command_string is a complete command, a usage line with command arguments along with a brief command description will be displayed.
Command help is also displayed when the parser detects an error in the user's command input. In this case, an error message followed by help information as described above will be displayed.
If enhanced terminal processing mode is enabled (see set terminal), the portion of the command line that was successfully parsed will be redisplayed on the next command prompt, and the displayed part will not need to be re-entered.
The following commands are identical:
help show show ?
Use the help command to get information about management commands.
*[ Time Server ]# help ping Ping Ping a remote machine Usage: ping <destination address> | <host name> [ count <count> ] [ timeout <timeout> ] [ datalength <data length>] [spray] [ sourceaddress <source address> | <interface> ]
| Command | Description |
|---|---|
set terminal | Sets Terminal parameters |
Posted: Wed Sep 27 11:05:21 PDT 2000
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