These examples are based on a Linux system. Switch to the mqm user.
su - mqm
The dmpmqmsg command is used to perform a number of tasks, including moving messages from queue "a" to queue "b". In this example, the messages on QUEUE01 are moved to QUEUE02.
dmpmqmsg -m MANAGER01 -I QUEUE01 -o QUEUE02
The following will be displayed after issuing the command. In this example, 4 messages were moved from QUEUE01 to QUEUE02.
Read - Files: 0 Messages: 4 Bytes: 4661 Written - Files: 0 Messages: 4 Bytes: 4661
Once moved, you may want to use the amqsbcg command to display the messages in the queue, qstatus command to display the CURDEPTH (current depth) of the queue, and display queue to display the MAXDEPTH of the queue.