total estimated bill aws

estimated_bill.sh

#!/bin/sh

from_email="from@synaptic.com"
to_email="to@synaptic.com"

max_estimated_charge_12_hour=$(aws --region us-east-1 cloudwatch get-metric-statistics \
 --namespace "AWS/Billing" \
 --metric-name "EstimatedCharges" \
 --dimension "Name=Currency,Value=USD" \
 --start-time $(date +"%Y-%m-%dT%H:%M:00" --date="-12 hours") --end-time $(date +"%Y-%m-%dT%H:%M:00") \
 --statistic Maximum \
 --period 60 \
 --output text | sort -r -k 3 | head -n 1 | cut -f 2)

 max_estimated_charge_before_last_12_hour=$(aws --region us-east-1 cloudwatch get-metric-statistics \
 --namespace "AWS/Billing" \
 --metric-name "EstimatedCharges" \
 --dimension "Name=Currency,Value=USD" \
 --start-time $(date +"%Y-%m-%dT%H:%M:00" \
 --date="-24 hours") \
 --end-time $(date +"%Y-%m-%dT%H:%M:00" --date="-12 hours") \
 --statistic Maximum \
 --period 60 \
 --output text | sort -r -k 3 | head -n 1 | cut -f 2)

bill=$(echo "$max_estimated_charge_12_hour $max_estimated_charge_before_last_12_hour" | awk '{print $1-$2}')

aws ses send-email \
 --from "$from_email" \
 --destination "ToAddresses=<$to_email>" \
 --message "Subject={Data=Billing alert,Charset=utf8},Body={Text={Data=last 12 hour bill `echo $bill`,Charset=utf8}}" \
 --region "us-east-1"