Editing a Command

The command editing function enables you to edit a command or obtain help using certain keys.

The CLI on an NetEngine 8000 F provides basic command editing functions and supports multi-line editing. Each command can contain a maximum of 3100 characters.

Table 1 describes common editing functions.

**Table 1** Common editing functions
Key	Function
Common key	Inserts a character in the place of the cursor and moves the cursor to the right if the editing buffer is not fully occupied.
Backspace	Deletes a character before the cursor and moves the cursor to the left. If the cursor reaches the head of the command, the system does not respond.
Up cursor key (↑) or Ctrl+P	Accesses the last historical command or displays the last historical command if there is an earlier historical command.
Down cursor key (↓) or Ctrl+N	Accesses the next historical command or displays the next historical command if there is a later historical command or clears the command if there is no later historical command.
Tab	Runs partial help after you enter an incomplete keyword and press Tab. If the keyword matching the entered one is unique, the system replaces the entered one with the complete keyword and displays it in a new line with the cursor a space behind. If there are several matches or no match at all, the system displays the prefix first. You can press Tab to switch from one matching keyword to another. In this case, the cursor closely follows the end of a word and you can press the spacebar and enter the next word. If you enter an incorrect keyword and press Tab, the system directly displays it in a new line.

For Windows 9X HyperTerminal, the function provided by the Up cursor key (↑) cannot be implemented, because Windows 9X HyperTerminal has defined a different function for the key. You can press Ctrl+P to implement the function provided by the key.

Follow-up Procedure

A terminal automatically saves typed historical commands, which can be any keyboard entry ending with Enter. To view historical commands, run the display history-command command. To delete the historical commands, run the reset history-command all-users or reset history-command command.