Tally up data added within a day, total bytes, and human readable format

additions.sh

#!/bin/bash

# Change folder and output below
# Run with @daily cron
folder=YOUR FOLDER
output=YOUR OUTPUT FILE


today=`date +%Y-%m-%d -d "yesterday"`
sum=$(find $folder -mtime -1 -printf "%s\n"|awk '{t+=$1}END{print t}')
readablesum=$(numfmt --to=iec $sum)
echo "$today $sum $readablesum" >> $output