List all AWS instances in all regions

show_all_instances.sh

#!/bin/sh

getRegions() {
  aws ec2 describe-regions --output text --query 'Regions[*].RegionName'
}

getInstances() {
  REGION=$1
  if [ "$#" -ne 1 ]; then
    echo "USAGE: getInstances us-west-2"
    exit 1
  fi
  aws ec2 describe-instances --region $REGION --output text --query 'Reservations[*].Instances[*].[InstanceId, InstanceType, ImageId, State.Name, LaunchTime, Placement.AvailabilityZone, Placement.Tenancy, PrivateIpAddress, PrivateDnsName, PublicDnsName, [Tags[?Key==`Name`].Value] [0][0], [Tags[?Key==`sleep-at-night`].Value] [0][0], [Tags[?Key==`TTL`].Value] [0][0], [Tags[?Key==`owner`].Value] [0][0] ]'
}

for region in $(getRegions); do
  getInstances $region
done