Cleans up S3 bucket using s3cmd command from older backups

cleanS3cmd.sh

#!/bin/bash

BUCKET_NAME=$1

NOW=$(date +"%s")
NOW_YEAR=$(date +"%Y")
PAST=$(( $NOW - (7 * 3600 * 24) ))
PAST_STRING=$(date -d @$PAST +"%Y-%m-%d")
LOG_PATH="/tmp/bucket-cleanup_$(date +"%Y-%m-%d").log"

DATA=$(s3cmd ls s3://${BUCKET_NAME}/ --recursive | awk -v PAST="${PAST_STRING}" '$1 < PAST {print $0}')

while read -r line; do
    BACKUP_PATH=$(echo "$line" | awk '{print $4}')
    BACKUP_DAY=$(echo "$line" | awk '{print $1}')
    BACKUP_YEAR=$(echo "$BACKUP_DAY" | awk -F "-" '{print $1}')
    FIRST_DAY_OF_MONTH=$(echo "$BACKUP_DAY" | awk -F "-" '{print $1"-"$2"-20"}')

    if [[ $BACKUP_DAY == $FIRST_DAY_OF_MONTH && $BACKUP_YEAR == $NOW_YEAR ]]; then
        continue
    fi

    if [[ $BACKUP_DAY < $PAST_STRING ]]; then
        s3cmd rm $BACKUP_PATH >>$LOG_PATH 2>&1
    fi
done <<< "$DATA"

s3cmd put $LOG_PATH s3://${BUCKET_NAME}/cleanup-log/bucket-cleanup_$(date +"%Y-%m-%d").log --quiet