IPCMK(1) User Commands IPCMK(1) NAME ipcmk - make various IPC resources SYNOPSIS ipcmk [options] DESCRIPTION ipcmk allows you to create POSIX and System V inter-process communication (IPC) objects: shared memory segments, message queues, and semaphore (ar- rays for System V). OPTIONS Resources can be specified with these options: -M, --shmem size Create a shared memory segment of size bytes. The size argument may be followed by the multiplicative suffixes KiB (=1024), MiB (=1024*1024), and so on for GiB, etc. (the "iB" is optional, e.g., "K" has the same meaning as "KiB") or the suffixes KB (=1000), MB (=1000*1000), and so on for GB, etc. -m, --posix-shmem size Create a POSIX shared memory segment of size bytes. The size argument may be followed by the multiplicative suffixes KiB (=1024), MiB (=1024*1024), and so on for GiB, etc. (the "iB" is optional, e.g., "K" has the same meaning as "KiB") or the suffixes KB (=1000), MB (=1000*1000), and so on for GB, etc. -Q, --queue Create a message queue. -q, --posix-mqueue Create a POSIX message queue. -S, --semaphore number Create a semaphore array with number of elements. -s, --posix-semaphore Create a POSIX named semaphore. -n, --name name Name of the POSIX IPC object. This option is mandatory for POSIX IPC objects. Other options are: -p, --mode mode Access permissions for the resource. Default is 0644. -h, --help Display help text and exit. -V, --version Display version and exit. AUTHORS Hayden A. James <hayden.james@gmail.com>, Prasanna Paithankar <paithankarprasanna@gmail.com> SEE ALSO ipcrm(1), ipcs(1), lsipc(1), sysvipc(7) REPORTING BUGS For bug reports, use the issue tracker <https://github.com/util-linux/util-linux/issues>. AVAILABILITY The ipcmk command is part of the util-linux package which can be downloaded from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils/util-linux/>. util-linux 2.41.2 2025-09-22 IPCMK(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | AUTHORS | SEE ALSO | REPORTING BUGS | AVAILABILITY
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