2-3You can use the info-center synchronous command to enable synchronous information output. Forthe detailed description of this function, refer to Information Center Configuration in the System Volume.Undo Form of a CommandAdding the keyword undo can form an undo command. Almost every configuration command has anundo form. undo commands are generally used to restore the system default, disable a function orcancel a configuration. For example, the info-center enable command is used to enable theinformation center, while the undo info-center enable command is used to disable the informationcenter. (By default, the information center is enabled.)Editing FeaturesThe CLI provides the basic command editing functions and supports multi-line editing. When youexecute a command, the system automatically goes to the next line if the maximum length of thecommand is reached. You cannot press Enter to go to the next line; otherwise, the system willautomatically execute the command. The maximum length of each command is 510 characters. Table2-1 lists these functions.Table 2-1 Edit functionsKey FunctionCommon keys If the editing buffer is not full, insert the character at the positionof the cursor and move the cursor to the right.Backspace Deletes the character to the left of the cursor and move thecursor back one character.Left-arrow key or Ctrl+B The cursor moves one character space to the left.Right-arrow key or Ctrl+F The cursor moves one character space to the right.Up-arrow key or Ctrl+PDown-arrow key or Ctrl+NDisplays history commandsTabPressing Tab after entering part of a keyword enables the fuzzyhelp function. If finding a unique match, the system substitutesthe complete keyword for the incomplete one and displays it inthe next line; when there are several matches, if you repeatedlypress Tab, all the keywords starting with the letter that you enterare displayed in cycles. If there is no match at all, the systemdoes not modify the incomplete keyword and displays it again inthe next line.When editing the command line, you can use other shortcut keys (For details, see Table 1-2) besidesthe shortcut keys defined in Table 2-1, or you can define shortcut keys by yourself. (For details, seeConfiguring CLI Hotkeys.)
