AWS CLI delete all but last five EBS snapshots with a certain name

snapshot_clean.sh

#!/usr/bin/env bash
#
# Delete all but the last 5 snapshots with passed tag.

SNAPSHOTSID=$(aws ec2 describe-snapshots \
    --owner-ids self \
    --filters Name=tag:Name,Values="${1}" \
    --query "Snapshots[*].{ID:SnapshotId}" --output text|tail +5)
for id in $SNAPSHOTSID; do
    aws ec2 delete-snapshot --snapshot-id "$id"
    echo "Successfully deleted snapshot $id"
done