ipcrm - remove a <b>message queue</b>, <b>semaphore set</b>, or <b>shared memory segment</b> identifier

       ipcrm [ -q msgid | -Q msgkey | -s semid | -S semkey | -m shmid | -M shmkey ] ...

       removes message queues, semaphore sets, or shared memory segments.
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<tr><td><code>
       -q  msgID<br>
    -Q msgKey<td> Remove  the  message  queue its data.


     <tr><td><code>-Q  msgkey Remove the message queue and destroy its data
       <tr><td><code>-m  shmid<br>
                     -M  shmkey
              Remove the shared memory identifier, The shared memory  segment and its data are destroyed after the last detach.

       <tr><td><code>-S  semkey <br>
                     -d semid <td>Remove semaphore and its data.



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