Use Emacs to clean up whitespace in a whole bunch of files

WhitespaceCleanup.sh

# Remove trailing whitespace, and replace tabs with the appropriate number of spaces

for file in `find . -name "*.?pp"`; do
    echo "$file"; /usr/local/bin/emacs --batch "$file" \
        --eval '(setq-default indent-tabs-mode nil)' \
        --eval '(whitespace-cleanup)' \
        -f 'save-buffer'
done