Converts a mp4 to gif in batch

batch-mp4gif.sh

#!/bin/bash
if [ ! -d "./converted" ]; then mkdir "./converted"; fi
if [ ! -d "./tmp" ]; then mkdir "./tmp"; fi

for i in $(find ./ -name '*.mp4')
do
	for word in $i
	do
	    case "$word" in
		    *converted* )
				;;
			*tmp* )
				;;
			* )
				filename=$(basename "$word")

				ffmpeg -i $filename -r 4 'tmp/frame-%03d.jpg'

				echo "converting ./tmp/$filename"

				convert -delay 25 -loop 0 'tmp/*.jpg' "converted/$filename.gif"

				rm  -rf ./tmp/*

		esac
	done
done