emacs dired reverse date order

Question

Is there a means to reverse the date sort order in dired?

Toggling to Dired by date mode by hitting 's' orders newest to oldest, top to bottom. I would like to reverse this so I see oldest to newest top to bottom

Answer 1

Use a prefix argument to dired-sort-toggle-or-edit: C-u s. This lets you manually specify the flags you wish to pass to ls:

Toggle sorting by date, and refresh the Dired buffer.
With a prefix argument, edit the current listing switches instead.

Then make sure to include both -t (to sort by modification time) and -r (to reverse the sort), e.g.

-altr RET

Answer 2

You do not need to manually change the ls switches for Dired, even via C-u s.

Just use command dired-sort-menu-toggle-reverse from library Dired Sort Menu (dired-sort-menu.el). dired-sort-menu.el binds it to r in Dired, by default.

If you also use library dired-sort-menu+.el and Dired+ then the command is rebound to | instead (r is for diredp-rename-this file).