Deleting AWS default VPCs (except for one region) via CLI

delete-vpc.sh

delete_vpc_components() {
  echo aws ec2 "describe-${7}" --filters "Name=$4,Values=$3" --output text --query "*[*].$5" --region $1
  for id in $(aws ec2 "describe-${7}" --filters "Name=$4,Values=$3" --output text --query "*[*].$5" --region $1)
  do
    echo "Deleting $2: $id"
    if [ "$2" == "internet-gateway" ] ; then
      aws ec2 detach-internet-gateway $6 $id --vpc-id $3 --region $1
    fi
    aws ec2 "delete-${2}" $6 $id --region $1
  done
}

for region in $(aws ec2 describe-regions --output text --query 'Regions[?RegionName!=`eu-north-1`].RegionName') 
do
  for vpc in $(aws ec2 describe-vpcs --region $region --output text --query 'Vpcs[*].VpcId')
  do
    delete_vpc_components "$region" "internet-gateway" "$vpc" "attachment.vpc-id" "InternetGatewayId" "--internet-gateway-id" "internet-gateways"
    delete_vpc_components "$region" "subnet" "$vpc" "vpc-id" "SubnetId" "--subnet-id" "subnets"
    delete_vpc_components "$region" "security-group" "$vpc" "vpc-id" "GroupId" "--group-id" "security-groups"
    delete_vpc_components "$region" "network-acl" "$vpc" "vpc-id" "NetworkAclId" "--network-acl-id" "network-acls"
    delete_vpc_components "$region" "vpc-peering-connection" "$vpc" "requester-vpc-info.vpc-id" "VpcPeeringConnectionId" "--vpc-peering-connection-id" "vpc-peering-connections"
    delete_vpc_components "$region" "vpc-endpoints" "$vpc" "vpc-id" "VpcEndpointId" "--vpc-endpoint-ids" "vpc-endpoints"
    delete_vpc_components "$region" "route-table" "$vpc" "vpc-id" "RouteTableId" "--route-table-id" "route-tables"
    echo "Deleting VPC $vpc in region $region..."
    aws ec2 delete-vpc --vpc-id $vpc --region $region
  done
done