1

I want to hide all Dired buffers as major mode in Ibuffer.

But

(add-to-list 'ibuffer-never-show-predicates "magit*")

ibuffer-never-show-predicates accepts a regexp and a function.

How can I hide all Dired buffers in Ibuffer?

2

Yes, you can write a predicate function for that:

(defun my-dired-mode-buffer-p (buf)
  "Non-nil if buffer BUF is in `dired-mode'."
  (with-current-buffer buf
    (derived-mode-p 'dired-mode)))

(with-eval-after-load "ibuffer"
  (add-to-list 'ibuffer-never-show-predicates #'my-dired-mode-buffer-p))
  • It works. thank you. – Jay Lee Mar 31 at 5:28
  • 2
    OP: If this answers your question then please consider accepting this answer. That way the question will no longer appear among the unanswered questions. Thx. – Drew Mar 31 at 23:23

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