1 @c This is part of the Emacs manual.
2 @c Copyright (C) 2004-2016 Free Software Foundation, Inc.
3 @c See file emacs.texi for copying conditions.
5 @c This file is included either in emacs-xtra.texi (when producing the
6 @c printed version) or in the main Emacs manual (for the on-line version).
8 @section Subdirectory Switches in Dired
10 You can insert subdirectories with specified @command{ls} switches in
11 Dired buffers using @kbd{C-u i}. You can change the @command{ls}
12 switches of an already inserted subdirectory at point using @kbd{C-u l}.
14 Dired preserves the switches if you revert the buffer. Deleting a
15 subdirectory forgets about its switches.
17 Using @code{dired-undo}
19 (@pxref{Marks vs Flags,,, emacs, the Emacs Manual})
22 (@pxref{Marks vs Flags})
25 subdirectories that were inserted with explicit switches can bypass
26 Dired's machinery for remembering (or forgetting) switches. Deleting
27 a subdirectory using @code{dired-undo} does not forget its switches.
28 When later reinserted using @kbd{i}, it will be reinserted using its
29 old switches. Using @code{dired-undo} to reinsert a subdirectory that
30 was deleted using the regular Dired commands (not @code{dired-undo})
31 will originally insert it with its old switches. Reverting the
32 buffer, however, will relist it using the buffer's default switches.
33 If any of this yields problems, you can easily correct the situation
34 using @kbd{C-u i} or @kbd{C-u l}.
36 Dired does not remember the @code{R} switch. Inserting a subdirectory
37 with switches that include the @code{R} switch is equivalent to
38 inserting each of its subdirectories using all remaining switches.
39 For instance, updating or killing a subdirectory that was inserted
40 with the @code{R} switch will not update or kill its subdirectories.
42 The buffer's default switches do not affect subdirectories that were
43 inserted using explicitly specified switches. In particular,
44 commands such as @kbd{s} that change the buffer's switches do not
45 affect such subdirectories. (They do, however, affect subdirectories
46 without explicitly assigned switches.)
48 You can make Dired forget about all subdirectory switches and relist
49 all subdirectories with the buffer's default switches using
50 @kbd{M-x dired-reset-subdir-switches}. This also reverts the Dired buffer.