Delete directories with specific files in Bash Script - bash

Question

I would like to delete specific files if existed but also the directories that contain these files. I do know the files I would like to wipe but not the directories. So far, as I'm new in bash scripting, I think of this :
find ./ -type f -name '*.r*' -print0 | xargs -0 rm -rf &> log_del.txt
find ./ -type f -name '*.c*' -print0 | xargs -0 rm -rf &>> log_del.txt
At the moment, all files named with the specific extensions *.r* and *.c* are deleted.
But the directories are still remaining and also the subdirectories in it, if existed.
I also thought of the option -o in find to delete in one line :
find ./ -type f \( -name '*.r*' -o -name '*.c*' \) -print0 | xargs -0 rm -rf &> log_del.txt
How can I do this?
And I also see that my log_del.txt file is empty... :-(

Answer 1

It looks like what you really want is to remove all empty directories, recursively.
find . -type d -delete
-delete processes the directories in child-first order, so that a/b is deleted before a. If a given directory is not empty, find will just display an error and continue.

Answer 2

If the directories remain empty, let rmdir try to remove all of them. It will fail on any directories which have still files.
find ./ -type d -exec rmdir --ignore-fail-on-non-empty {} 2>/dev/null \;

Answer 3

See if this serves your requirement:
find ./ -type f -name '*.r*' -delete -printf "%h\0" | xargs -0 rmdir
If the directory contained any other files, rmdir will fail.
So consider below sample file structure:
$ find a
a/
a/a/
a/a/4
a/b/
a/b/5
a/b/4
a/b/3
a/b/2
a/b/1
$ find a -type f -name '4' -delete -printf "%h\0" | xargs -0 -r rmdir
rmdir: failed to remove ‘a/b’: Directory not empty
$ find a
a
a/b
a/b/5
a/b/3
a/b/2
a/b/1
If in above example, you want to delete directory b also, you can simply use:
$ find ./ -type f -name '*.r*' -printf "%h\0" | xargs -0 rm -rf
EDIT: As per the comment, you (OP) wanted that the empty directory tree should also be deleted. These 2 commands should help you then:
$ find ./ -type f -name '*.r*' -delete # Delete matching files
$ find ./ -empty -type d -delete # Delete tree of empty directories