delete subfolders and files without deleting parent folder and child folder?

Question

For this type of dir structure :

\\rdwlhsdevserver\root\user1\folders\testdat.txt
\\rdwlhsdevserver\root\abhay\testdat.txt
\\rdwlhsdevserver\root\testuser\folders1\folder2\testdat.txt
\\rdwlhsdevserver\root\devadmin\input\testdat.txt
\\rdwlhsdevserver\root\admin\testdata\testdat.txt

I know that I can use rm -rf <<folderPath>> to delete parent folder and all sub-folders, but I want to delete all folders and files except \\\rdwlhsdevserver\root\Childfolder

After running cmd, output should be like:

\\rdwlhsdevserver\root\user1\
\\rdwlhsdevserver\root\abhay\
\\rdwlhsdevserver\root\testuser\
\\rdwlhsdevserver\root\devadmin\
\\rdwlhsdevserver\root\admin\

Answer 1

rm -rf /path/to/root/*/*

NOTE: Please test this first by making a similar test directory structure. Your shell may not support this kind of syntax (I tested on bash and zsh).

Answer 2

With GNU or BSD find:

find /path/to/root -mindepth 2 -delete

With zsh:

rm -rf /path/to/root/*/*(D)

However note that if there are symlinks to directories in /path/to/root, they will be followed to remove the files in them. You may also run into a Arg list too big error which you could work around by enabling the rm builtin:

zmodload zsh/files
rm -rf /path/to/root/*/.(D)

(the builtin version of rm can remove .)

If you don't want to follow symlinks:

zmodload zsh/files
dirs=(/path/to/root/*(D/)) && rm -rf $^dirs/.