Get the lists of public EBS snapshots and filter by description

get_public_ebs.sh

#!/bin/bash

keyword="any_description_here"

regions=( us-east-1 us-east-2 us-west-1 us-west-2 ap-south-1 ap-northeast-3 ap-northeast-2 ap-southeast-1 ap-southeast-2 ap-northeast-1 ca-central-1 eu-central-1 eu-west-1 eu-west-2 eu-west-3 eu-south-1 )
for i in "${regions[@]}"
do
    echo -n "Region: ${i}"
    aws ec2 describe-snapshots --region ${i} --filters "Name=description,Values=$keyword"
done