2-7Action FunctionPress Enter when information display pauses Continues to display information of the next line.Press Ctrl+C when information display pauses Stops the display and the command execution.Ctrl+E Moves the cursor to the end of the current line.PageUp Displays information on the previous page.PageDown Displays information on the next page.Saving History CommandsThe CLI can automatically save the commands that have been used lately to the history buffer. You canknow the operations that have been executed successfully, invoke and repeatedly execute them asneeded. By default, the CLI can save up to ten commands for each user. You can use thehistory-command max-size command to set the capacity of the history commands buffer for thecurrent user interface (For the detailed description of the history-command max-size command, referto Login Commands in the System Volume). In addition:z The CLI saves the commands in the format that you have input, that is, if you input a command inits incomplete form, the saved history command is also incomplete.z If you execute a command for multiple times successively, the CLI saves the earliest one. However,if you execute the different forms of a command, the CLI saves each form of this command. Forexample, if you execute the display cu command for multiple times successively, the CLI savesonly one history command; if you execute the display cu command and then the displaycurrent-configuration command, the CLI saves two history commands.Follow these steps to access history commands:To do… Use the key/command… ResultView the history commands display history-command Displays the commands thatyou have enteredAccess the previous historycommand Up-arrow key or Ctrl+P Displays the earlier historycommand, if there is any.Access the next historycommand Down-arrow key or Ctrl+N Displays the next historycommand, if there is any.You may use arrow keys to access history commands in Windows 200X and XP Terminal or Telnet.However, the up-arrow and down-arrow keys are invalid in Windows 9X HyperTerminal, because theyare defined in a different way. You can press Ctrl+P or Ctrl+N instead.Command Line Error InformationThe commands are executed only if they have no syntax error. Otherwise, error information is reported.Table 2-4 lists some common errors.