find -D rates . -type f \( -name '*.gif' -o -name '*.png' -o -name '*.jpg' -o -name '*.jpeg' \) -print -exec bash -c 'identify "$1" &> /dev/null || echo "$1" >> invalid-imgs.log' none {} \;
forked & modified from:
find -D rates . -type f \( -name '*.gif' -o -name '*.png' -o -name '*.jpg' -o -name '*.jpeg' \) -print -exec bash -c 'identify "$1" &> /dev/null || echo "$1" >> invalid-imgs.log' none {} \;
forked & modified from: