Script to check AWS instance offers in regions

instance-type-regions.sh

#!/bin/bash

if [ "$#" == "0" ]; then
	echo "Usage: $0 <instance type prefix> [region]"
	exit 1
fi

INSTANCE_TYPE=$1

if [ -z "$2" ]; then
  REGIONS=$(aws ec2 describe-regions \
    --query 'Regions[*]|sort_by(@, &RegionName)|[].[RegionName]' --output text)
else
  REGIONS=$2
fi

while read -r REGION; do
  TYPES=$(aws ec2 describe-instance-type-offerings --no-cli-pager \
    --location-type region --region $REGION --output text --query \
    'InstanceTypeOfferings[]|sort_by(@, &InstanceType)[?starts_with(InstanceType, `'$INSTANCE_TYPE'`)].[`"  "`, InstanceType]|map(&[join(``, @)], @)' )
  if [ ! -z "$TYPES" ]; then
    echo $REGION
    echo "$TYPES"
    fi

done <<< "$REGIONS"