By using the DO and REDO commands, you can modify and reissue a command that has been entered interactively from a session. These commands are especially helpful to correct typing errors or to avoid retyping complicated command input.
The command history stack retains the latest commands that have been issued from the session or job. Usually, the last 20 commands that have been issued are kept in the stack.
The LISTREDO command displays the command history stack. A command can be selected by referring to its position in the stack. Elements of the command image can be changed or deleted as needed. The command can then be reissued.
There are several ways of selecting a command from the stack. Refer to the self-paced tutorial Using the 900 Series HP 3000: Fundamental Skills (32650-60037) for details regarding the REDO, LISTREDO, and DO commands and examples of their use.
