AWSで全てのリージョンから無駄リソースを抽出するワンライナー ref: http://qiita.com/saitara/items/a1e3422042a2ec2fb8d7

file0.txt

for region in `aws ec2 describe-regions --query 'Regions[].RegionName' --output text`;do aws ec2 describe-volumes --region ${region} --filters Name=attachment.status,Values=detached;done

file1.txt

for region in `aws ec2 describe-regions --query 'Regions[].RegionName' --output text`;do aws ec2 describe-addresses --region ${region} --query 'Addresses[?InstanceId==`null`]';done 

file2.txt

for region in `aws ec2 describe-regions --query 'Regions[].RegionName' --output text`;do aws elb describe-load-balancers --query 'LoadBalancerDescriptions[?length(Instances)==`0`].LoadBalancerName' --region ${region};done 

file3.txt

for region in `aws ec2 describe-regions --query 'Regions[].RegionName' --output text`;do aws ec2 describe-network-interfaces --filters Name=attachment.status,Values=detached --region ${region};done