Dired Navigation (Mastering Emacs

dired-next-line: ‘C-n’; ‘n’; ‘<SPC>’
direct-previous-line: ‘C-p’; ‘p’
dired-unmark-backward: ‘<DEL>’
dired-goto-file: ‘j’
dired-isearch-filenames: ‘M-s f C-s’
dired-isearch-filenames-regexp: ‘M-s f M-C-s’
dired-isearch-filenames: variable; default value is nil; non-nil values are t and ‘dwim’