Enable “no ack” mode: The AMQP server will unconditionally acknowledge each message that is
delivered, regardless of whether the target command exits successfully or not.
By default, messages will be consumed with explicit acknowledgements. A message will only be acknowledged
if the receiving command exits successfully (i.e. with an exit code of zero). The AMQP “no ack” mode
(a.k.a. auto-ack mode) can be enable with the -A option.
Consume messages from an existing queue “myqueue”, and output the message bodies on standard output via
Bind a new exclusive queue to an exchange “myexch”, and send each message body to the script myscript,
automatically acknowledging them on the server: