Variable: ibuffer-case-fold-search
ibuffer-case-fold-search is a customizable variable defined in
ibuffer.el.gz.
Value
t
Documentation
If non-nil, ignore case when searching.
Source Code
;; Defined in /usr/src/emacs/lisp/ibuffer.el.gz
(defcustom ibuffer-case-fold-search case-fold-search
"If non-nil, ignore case when searching."
:type 'boolean)