AWS S3 du (disk usage) script

aws-s3-du.sh

function aws-s3-du() {
  local buckets=$@
  if [ -z "$buckets" ]; then
    buckets=$(aws s3 ls | awk '{print $3}')
  fi
  for bucket in $buckets; do
    echo -ne "${bucket}\t\t"
    aws s3 ls s3://${bucket}  --recursive |   grep -v -E "(Bucket: |Prefix: |LastWriteTime|^$|--)" | awk 'BEGIN {total=0}{total+=$3}END{print total/1024/1024/1024" GB"}'
  done
}