ipcmk:tldr:09679

The command "ipcmk --shmem ${segment_size_in_bytes}" is used to create a shared memory segment with a specified size in bytes.

Here's a breakdown of the command:

• "ipcmk": It stands for "Inter-Process Communication (IPC) Create" and is a utility command on Unix-like systems used to create IPC resources.
• "--shmem": This option specifies that we want to create a shared memory segment. Shared memory allows multiple processes to access the same region of memory. This can be useful for efficient inter-process communication.
• "${segment_size_in_bytes}": This is a placeholder for the desired size of the shared memory segment, specified in bytes. You would replace this placeholder with the actual size you want when running the command.

For example, if you wanted to create a shared memory segment of size 1024 bytes, you would run the command as follows: "ipcmk --shmem 1024". This would create a shared memory segment of 1024 bytes.

Note that the actual command may differ depending on the operating system or specific IPC implementation being used.