You can abbreviate a GDB command to the first few letters of the command name, if that abbreviation is unambiguous; and you can repeat certain GDB commands by typing just RET. You can also use the TAB key to get GDB to fill out the rest of a word in a command (or to show you the alternatives available, if there is more than one possibility).
|• Command Syntax:||How to give commands to GDB|
|• Completion:||Command completion|
|• Help:||How to ask GDB for help|