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ipcrm:tldr:e9632
The command "ipcrm --all" is used in Unix-like operating systems (such as Linux) to remove all System V interprocess communication (IPC) objects that are currently attached or allocated on the system.
System V IPC objects include shared memory segments, message queues, and semaphore arrays. These objects are created by processes and remain in the system until they are explicitly removed.
The "ipcrm" command is a utility that allows users to manage IPC objects. By providing the "--all" option, the command removes all IPC objects regardless of their type, attachment status, or ownership.
It is important to note that removing IPC objects can have consequences, especially if other processes are actively using these objects. Therefore, the "ipcrm --all" command should be used with caution, ensuring that all dependent processes have finished using the objects.