Backup a directory, copy latest backup to S3

backup-www.sh

#!/bin/sh

DIR=`/var/www`
NAME=`www`
DATE=`date +%d%m%y%H%M`
S3_BUCKET="s3://my-bucket"

# export files
tar czf /opt/backups/${NAME}_${DATE}.tar -C / ${DIR}
cp /opt/backups/${NAME}_${DATE}.tar /opt/backups/${NAME}-latest.tar

# remove backups older than 5 days
find /opt/backups/${NAME}* -mtime +5 -exec rm {} \;

# sync to amazon
aws s3 cp /opt/backups/${NAME}-latest.tar ${S3_BUCKET}