Is it possible to show all files in all subfolders in one buffer?

Question

Emacs 26.1, Windows 10, dired+

Suppose I has folder with 2 subfolders. In every folders has files. Is it possible , to show all files in one buffers. Smt like this:

P.S. If I use "i" (dired-maybe-insert-subdir) in dired mode

it's not good, because I need to press 4 times to open all folders.
But I want with ONE press to show all folders/files and all its subfolders and files.

Answer 1

If you use dired-aux, which is built-in in Emacs and you can easily require in your init file, you can then press i on a directory in a Dired buffer and have its contents displayed in the current buffer.

i is dired-maybe-insert-subdir. As per the documentation (C-h k i):

Insert this subdirectory into the same dired buffer.

If it is already present, just move to it (type M-x dired-do-redisplay to refresh), else inserts it at its natural place (as ls -lR would have done). With a prefix arg, you may edit the ls switches used for this listing. You can add R to the switches to expand the whole tree starting at this subdirectory. This function takes some pains to conform to ls -lR output.

If you do C-u i in the parent directory, you will see all the sub-directories in the buffer. In your example, move up one directory, press C-u i on TEMP and add the -R switch.

Answer 2

Subdirectories in Dired

The simplest way to include multiple directories in one Dired buffer is to specify the options -lR for running ls. (If you give a numeric argument when you run Dired, then you can specify these options in the minibuffer.) That produces a recursive directory listing showing all subdirectories at all levels.

Dired and find

To search for files with names matching a wildcard pattern use M-x find-name-dired. It reads arguments directory and pattern, and chooses all the files in directory or its subdirectories whose individual names match pattern.