How do I delete all empty directories

(on a Linux system)

I have a large set of nested subdirectories on a filesystem. I would like to prune all directory paths that contain no files at all.

In other words I would like to delete every directory where there are no files in that directory or in any subdirectory of that directory recursively.

For all versions of find

find -depth -type d -empty -exec rmdir {} \;

If you have a newer version

 find -type d -empty -delete

May not be the best solution, but this script works:

#!/bin/sh

while true
do
    DIRS=`find . -xdev -type d -exec find {}  -maxdepth 0 -empty  \;`
    if [ -z "$DIRS" ]; then
        exit 0
    else
        echo $DIRS | xargs rmdir
    fi
done

(based partly on the answer to List all empty folders)