ec2-describe-instances ec2-describe-volumes and ec2-describe-snapshots for x environments all availability zones. assumes keys are in /home/ubuntu/KEYS/* and names foo.key and foo.pem Also counts size in gigs of attached volumes as well as all snapshots.

inventory aws

#!/bin/bash
for x in $(find /home/ubuntu/KEYS/* -type f | grep ".key");
do

#Get a list of avaliable avaliablility zones
if [[ ! -e tmp_zones ]]; then
ec2-describe-regions -C ${x%.*}.pem -K ${x%.*}.key | awk '{ print $2 }' > tmp_zones
fi

  for zone in $(cat tmp_zones)
		do

		echo "Logging "$(basename ${x%.*})"'s instances in $zone avaliablity zone"
			ec2-describe-instances --headers --region "$zone" -K ${x%.*}.key -C ${x%.*}.pem > /home/ubuntu/Inventory/instances-"$zone"-"$(basename ${x%.*})"
		echo "Logging "$(basename ${x%.*})"'s volumes in $zone avaliablity zone"
			ec2-describe-volumes --headers --region "$zone" -K ${x%.*}.key -C ${x%.*}.pem > /home/ubuntu/Inventory/volumes-"$zone"-"$(basename ${x%.*})"
		echo "Logging "$(basename ${x%.*})"'s snapshots in $zone avaliablity zone"
			ec2-describe-snapshots --headers --region "$zone" -K ${x%.*}.key -C ${x%.*}.pem > /home/ubuntu/Inventory/snapshots-"$zone"-"$(basename ${x%.*})"

		done
done

cd /home/ubuntu/Inventory/
#disk usage all attached volumes (per client)
for x in $(find . -type f | grep volumes | grep eu ); do echo $x; cat $x | grep in-use | awk '{ i = i+$3}; END { print i, "GIGS" }'; done >> /tmp/RUNNINGdiskusage
#disk usage all snapshots (per client)
for x in $(find . -type f | grep snapshot | grep eu ); do echo $x; cat $x | grep SNAPSHOT | awk '{ i=i+$8}; END { print i, "GIGS" }'; done >> /tmp/BACKUPusage