Brief summary of current EC2 spot prices for select instance types. Requires Amazon EC2 API Tools: http://aws.amazon.com/developertools/351

ec2-spot-price.sh

#!/bin/bash -e

INSTANCE_TYPES="m1.small m1.medium m1.large m1.xlarge m2.xlarge m2.2xlarge m2.4xlarge c1.xlarge cc1.4xlarge cc2.8xlarge"

if [ "$#" -gt "0" ]; then
	region=$1
else
	region=$AWS_REGION
fi

if [ -z $region ]; then
	echo "Usage: $0 REGION"
	echo "Or, set AWS_REGION environment variable"
	exit 1
fi

echo "Pricing for $AWS_REGION region:"
echo ""

for type in $INSTANCE_TYPES; do
	price=$(ec2-describe-spot-price-history \
		--region $region \
		-d Linux/UNIX \
		-t $type \
		-s $(date +%Y-%m-%dT%H:%M:%S) \
		| head -1 \
		| awk '{ print $2 }')

	echo "$type: $price"
done

echo ""