Dê uma olhada no modo dired-omit
:
Dired-Omit minor mode (indicator Omit):
Toggle Dired-Omit mode.
With numeric ARG, enable Dired-Omit mode if ARG is positive, disable
otherwise. Enabling and disabling is buffer-local.
If enabled, "uninteresting" files are not listed.
Uninteresting files are those whose filenames match regexp 'dired-omit-files',
plus those ending with extensions in 'dired-omit-extensions'
dired-omit
faz parte de dired-x
.