Raspberry Pi - sending webcam pictures to e-mail

#!/bin/bash

BASE_DIR="/home/pi/motion"
DATE_DIR=$(date +%Y-%m)
DAY_DIR=$(date +%d)

for file in `ls ${BASE_DIR}/*.jpg | sort -R | tail -20`; do

    uuencode $file $file >> ${BASE_DIR}/attachments.txt

done

mkdir -p ${BASE_DIR}/archive/${DATE_DIR}/${DAY_DIR}
mv ${BASE_DIR}/*.jpg ${BASE_DIR}/archive/${DATE_DIR}/${DAY_DIR}

cat ${BASE_DIR}/attachments.txt | mail -s "[raspi-sudice] pohyb - dvur" zdenek.materna@gmail.com
rm ${BASE_DIR}/attachments.txt