aws_s3_last_modified_buckets

aws_s3_last_modified_buckets.sh

#!/bin/bash

export AWS_ACCESS_KEY_ID=
export AWS_SECRET_ACCESS_KEY=
export AWS_DEFAULT_REGION=

buckets_wsv=$(aws s3api list-buckets --query "Buckets[].Name" --output text)
echo $buckets_wsv
echo
echo "---"
echo
buckets=($buckets_wsv)

echo "bucket,last_modified_object,last_modified_object_updated_at,last_modified_object_size"
for bucket in "${buckets[@]}"
do
  echo -n "$bucket,"
  last_modified=$(aws s3api list-objects-v2 --bucket $bucket | jq  -r '.[] | max_by(.LastModified) | [.Key, .LastModified, .Size] | @csv')
  echo $last_modified
done