Task: Count the number of regular files in directory tree ${DIRECTORY} that contain a vowel in their names
Command: find ${DIRECTORY} -type f -print | sed -e 's@^.*/@@' | grep '[aeiouyAEIOUY]' | wc -l
Equivalent command: find "${DIRECTORY}" -type f -print | awk -F/ '{print $NF}' | grep -i '[aeiouy]' | wc -l