Add terminate-clusters command

README.md

@@ -63,3 +63,5 @@ printed to stdout; future commands will require it.
  * As with any new SSH host, you will have to accept an authenticity warning the
 first time you connect to a cluster.
  * Once it's forwarding, this process will not exit, nor print any output.
+* Run **./terminate-clusters <cluster-id>** when done to avoid recurring charges.
+* For additional advanced operations, explore the **emr** subcommand of the AWS CLI.

terminate-clusters

@@ -0,0 +1,35 @@
+#!/bin/sh
+
+# Copyright (C) 2015 Commerce Technologies, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# Waits for a cluster to be ready for use.
+
+printUsage() {
+	echo "Sends a termination request for one or more clusters."
+	echo ""
+	echo "Usage: $0 <cluster-id> [<cluster-id> ...]"
+	echo ""
+	echo "Please provide the cluster-id printed by the 'launch-cluster' command."
+	echo ""
+	echo "To use an AWS CLI profile other than 'default', set the environment variable AWS_PROFILE."
+}
+
+if [ -z "$1" ]; then
+	printUsage
+	exit 1
+fi
+
+aws --profile ${AWS_PROFILE:-"default"} emr terminate-clusters --cluster-ids $*