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I’d like to create a shared memory segment from a Unix startup script.
The created segment would be accessed by several php scripts.
Is there a shell command to create a shared mem segment specifying key, mode, permissions and size?
You can use ipcrm to delete a shared memory segment, and ipcs to list shared memory segments … but AFAIK you need to use a C program (or equivalent) to create a shared memory segment. There’s no command I’m aware of to create one directly from the shell.