Dump messages from a rabbitmq queue without removing them from the queue:
$ mkdir dump
$ rabbitmq-dump-queue -uri="amqp://guest:guest@localhost:5672/" -queue=test_queue -max-messages=1 -output-dir=./dump
$ cat ./dump/msg-000
rabbitmq-dump-queue is a go app from here: https://github.com/dubek/rabbitmq-dump-queue