Linux Shell Commands

# show the size of folders in current (non-recursive)
ls -1 | sed 's/ /\\ /g' | xargs du -sh

# show the size all folders below the current (recursive)
ls -1 | sed 's/ /\\ /g' | xargs du -h

# Remove empty folders - must be run a few times to work up the tree
ls -1 | sed 's/ /\\ /g' | xargs du -h | grep '4.0K' | awk '{$1=""; print $0}' | sed 's/^ //g; s/ /\\ /g' | xargs rm -rf