~$ aws autoscaling put-scaling-policy \
   --policy-name myscaledown \
   --auto-scaling-group-name myasg \
   --scaling-adjustment -1 \
   --adjustment-type ChangeInCapacity
{
    "PolicyARN": "arn:aws:autoscaling:eu-central-
                  1:130587313947:scalingPolicy:32466f1d-5ebf-
                  4848-8a3a-ff24c79f0f6f:autoScalingGroupName/
                  myasg:policyName/myscaledown",
    "Alarms": []
}
