You customize key bindings using one of three functions: define-key, global-set-key, or local-set-key. Their forms are:
(define-key keymap "keystroke" 'command-name) (global-set-key "keystroke" 'command-name) (local-set-key "keystroke" 'command-name)
Notice the double quotes around keystroke and the single quote preceding command-name. This is LISP syntax. The "keystroke" is one or more characters, either printable or special characters. Special characters, such as ESC, should be represented as shown in the table below.
|\C-n||C-n (where n is any letter)|
|\C-[ or \e||ESC|
|\C-j or \n||LINEFEED|
|\C-m or \r||RETURN|
|\C-i or \T||TAB|
To set the value of a variable, use the setq function in your .emacs file, as in:
(setq auto-save-interval 800)
Although auto-save-interval takes an integer value, many Emacs variables take "true" or "false" values. In Emacs LISP, t is true and nil is false. Emacs variables can also take other types of values; here is how to specify them:
Strings of characters are surrounded by double quotes.
Characters are specified like strings but with a ? preceding them, and they are not surrounded by double quotes. Thus, ?x and ?\C-c are character values x and C-c, respectively.
Symbols are specified by a single quote followed by a symbol name—for example, 'never.
A list of some useful Emacs variables with descriptions ...