Daily automatic backup/snapshots and purging for EC2 volumes

gistfile1.txt

#!/bin/bash
#create snapshots of all volumes
aws ec2 describe-volumes | grep VOLUMES | cut -f 7 | while read volumeid; do  aws ec2 create-snapshot --volume-id=$volumeid --description="daily-for-automatical-deletion" ; done

#delete all but the last 35 (if 5 volumes, this is keeping the daily automatic backups for the last 7 days)
aws ec2 describe-snapshots --owner-id=<insert-owner-id> --filters Name=description,Values="*for-automatical-deletion" | grep SNAPSHOTS |  sort -r -k 6 | sed -n 35,1000p | cut -f 5 | while read snapshotid; do aws ec2 delete-snapshot --snapshot-id=$snapshotid; done