Undo Form Of A Command; Editing Features - 3Com 4500G Family Configuration Manual

You can use the info-center synchronous command to enable synchronous information output. For
the detailed description of this function, refer to Information Center Configuration in the System Volume.

Undo Form of a Command

Adding the keyword undo can form an undo command. Almost every configuration command has an
undo form. undo commands are generally used to restore the system default, disable a function or
cancel a configuration. For example, the info-center enable command is used to enable the
information center, while the undo info-center enable command is used to disable the information
center. (By default, the information center is enabled.)

Editing Features

The CLI provides the basic command editing functions and supports multi-line editing. When you
execute a command, the system automatically goes to the next line if the maximum length of the
command is reached. You cannot press Enter to go to the next line; otherwise, the system will
automatically execute the command. The maximum length of each command is 510 characters.
2-1 lists these functions.
Table 2-1 Edit functions
Key
Common keys
Backspace
Left-arrow key or Ctrl+B
Right-arrow key or Ctrl+F
Up-arrow key or Ctrl+P
Down-arrow key or Ctrl+N
Tab
When editing the command line, you can use other shortcut keys (For details, see
the shortcut keys defined in
Configuring CLI Hotkeys.)
If the editing buffer is not full, insert the character at the position
of the cursor and move the cursor to the right.
Deletes the character to the left of the cursor and move the
cursor back one character.
The cursor moves one character space to the left.
The cursor moves one character space to the right.
Displays history commands
Pressing Tab after entering part of a keyword enables the fuzzy
help function. If finding a unique match, the system substitutes
the complete keyword for the incomplete one and displays it in
the next line; when there are several matches, if you repeatedly
press Tab, all the keywords starting with the letter that you enter
are displayed in cycles. If there is no match at all, the system
does not modify the incomplete keyword and displays it again in
the next line.
Table 2-1, or you can define shortcut keys by yourself. (For details, see
2-3
Function
Table
Table
1-2) besides