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Linux in a Nutshell

This directory of Linux commands is from Linux in a Nutshell, 5th Edition.

Click on any of the 687 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Bookshelf.

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ipcrm

ipcrm [options]

System administration command. Remove interprocess communication (IPC) message queues, shared memory segments, or semaphore arrays. These may be specified either by numeric identifier or by key, using the following options.

Options

-m identifier, -M key

Remove specified shared memory segment and its associated data structures after the last detach is performed.

-q identifier, -Q key

Remove specified message queue and its associated data structures.

-s identifier, -S key

Remove specified semaphore array and its associated data structures.