Using The Undo Form Of A Command - HP 10500 Series Configuration Manual

Enter a question mark at a view prompt to display the first keyword of every command available in
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the view. For example:
<Sysname> ?
User view commands:
archive
backup
bash
blade
...
Enter a space and a question mark after a command keyword to display all available, subsequent
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keywords and arguments.
If the question mark is in the place of a keyword, the CLI displays all possible keywords, each
with a brief description. For example:
<Sysname> terminal ?
debugging
logging
monitor
tracing
If the question mark is in the place of an argument, the CLI displays the description for the
argument. For example:
<Sysname> system-view
[Sysname] interface vlan-interface ?
<1-4094>
[Sysname] interface vlan-interface 1 ?
<cr>
[Sysname] interface vlan-interface 1
<1-4094> is the value range for the argument. <cr> indicates that the command is complete
and you can press Enter to execute the command.
Enter an incomplete keyword string followed by a question mark to display all keywords starting
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with that string. For example:
<Sysname> f?
fabric
fabric-mode
file
fips
ftp
<Sysname> display ftp?
client

Using the undo form of a command

Most configuration commands have an undo form for the following tasks:
Canceling a configuration.
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Restoring the default.
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Disabling a feature.
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Archive configuration
Backup the startup configuration file to a TFTP server
Enable to display debugging logs on the current terminal
Display logs on the current terminal
Enable to display logs on the current terminal
Display traces on the current terminal
Vlan-interface interface number
FTP client information
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