Script to check the object versioning status of all S3 buckets associated with an AWS account and enable object versioning on any S3 buckets where object versioning is not enabled.

enable_s3_versioning_for_AWS_S3_buckets.sh

#!/bin/bash

# This script is designed to check the object versioning status of all S3 buckets associated with an AWS account
# and enable object versioning on any S3 buckets where object versioning is not enabled.

# Get list of S3 buckets from Amazon Web Services

s3_bucket_list=$(aws s3api list-buckets --query 'Buckets[*].Name' | sed -e 's/[][]//g' -e 's/"//g' -e 's/,//g' -e '/^$/d' -e 's/^[ \t]*//;s/[ \t]*$//')

# Loop through the list of S3 buckets and check the individual bucket's object version status.

for bucket in $(echo "$s3_bucket_list")
do
  version_status=$(aws s3api get-bucket-versioning --bucket "$bucket" | awk '/Status/ {print $2}' | sed 's/"//g')
   if [[ "$version_status" = "Enabled" ]]; then
      
      # If the object version status is Enabled, report that the S3 bucket has object versioning enabled.
      
      echo "The $bucket S3 bucket has object versioning enabled."
  elif [[ "$version_status" != "Enabled" ]]; then
  
      # If the object version is a status other than Enabled, report that the S3 bucket does not have
      # object versioning enabled, then enable object versioning
  
      echo "The $bucket S3 bucket does not have object versioning enabled. Enabling object versioning on the $bucket S3 bucket."
      aws s3api put-bucket-versioning --bucket "$bucket" --versioning-configuration Status=Enabled
  fi
done