An example of how to use a `bash` script to perform actions on AMI records

parse-images.sh

#!/bin/bash

IFS=$'\n'

for image in $(aws ec2 describe-images --filter "Name=description,Values=Auto backed up on *" --query 'Images[].{Description:Description,Image_ID:ImageId,DateCreated:CreationDate}')
    creationDate=$(echo $image | awk -F'\t' '{print $1}')
    description=$(echo $image | awk -F'\t' '{print $2}')
    imageId=$(echo $image | awk -F'\t' '{print $3}')
    echo "$imageId | $creationDate | $description"
done