Variable: comint-input-ring-size
comint-input-ring-size is a customizable variable defined in
comint.el.gz.
Value
500
Documentation
Size of the input history ring in comint-mode.
This variable was added, or its default value changed, in Emacs 23.2.
Source Code
;; Defined in /usr/src/emacs/lisp/comint.el.gz
(defcustom comint-input-ring-size 500
"Size of the input history ring in `comint-mode'."
:type 'natnum
:group 'comint
:version "23.2")