Usage:
 ipcmk [options]

Create various IPC resources.

Options:
 -M, --shmem <size>       create shared memory segment of size <size>
 -m, --posix-shmem <size> create POSIX shared memory segment of size <size>
 -S, --semaphore <number> create semaphore array with <number> elements
 -s, --posix-semaphore    create POSIX semaphore
 -Q, --queue              create message queue
 -q, --posix-mqueue       create POSIX message queue
 -p, --mode <mode>        permission for the resource (default is 0644)
 -n, --name <name>        name of the POSIX resource

 -h, --help               display this help
 -V, --version            display version

Arguments:
 Values for <size> may be followed by a suffix: KiB, MiB,
 GiB, TiB, PiB, EiB, ZiB, or YiB (where the "iB" is optional).

 -n, --name <name> option is required for POSIX IPC

For more details see ipcmk(1).