Purging all the versions of objects from an AWS S3 bucket.

aws_s3_purge_versions.sh

#!/bin/bash
# This script assumes that your aws cli is able to connect to the bucket you want to purge
bucket=$1

set -e

echo "Removing all versions from $bucket"

versions=`aws s3api list-object-versions --bucket $bucket |jq '.Versions'`
markers=`aws s3api list-object-versions --bucket $bucket |jq '.DeleteMarkers'`

echo "removing files"
for version in $(echo "${versions}" | jq -r '.[] | @base64'); do
    version=$(echo ${version} | base64 --decode)

    key=`echo $version | jq -r .Key`
    versionId=`echo $version | jq -r .VersionId `
    aws s3api delete-object --bucket $bucket --key $key --version-id $versionId &
done

echo "removing delete markers"
for marker in $(echo "${markers}" | jq -r '.[] | @base64'); do
    marker=$(echo ${marker} | base64 --decode)

    key=`echo $marker | jq -r .Key`
    versionId=`echo $marker | jq -r .VersionId `
    aws s3api delete-object --bucket $bucket --key $key --version-id $versionId &
done