Bash function to get the size of S3 bucket

s3_bucket_size

# Usage: 
# 
# s3_bucket_size your-bucket-name
#
function s3_bucket_size() {
  if [ -z "$1" ]; then
    echo "Please provide a bucket name."
    return 1
  fi

  local bucket_name="$1"
  aws s3 ls "s3://$bucket_name/" --recursive | awk 'BEGIN {total=0} {total+=$3} END {print total/1024/1024 " MB"}'
}