[rabbitmq] How do I delete all messages from a single queue using the CLI?

I guess its late but for others reference, this can be done with pika

import pika
host_ip = #host ip
channel = pika.BlockingConnection(pika.ConnectionParameters(host_ip,
                                                        5672,
                                                        "/",
credentials=pika.PlainCredentials("username","pwd"))).channel()
print "deleting queue..", channel.queue_delete(queue=queue_name)