What are the steps to configure shared memory on Linux?

The steps for configuring shared memory in Linux are as follows:

1. Create a shared memory object by using the shmget system call to specify the size and permissions of the shared memory.
2. Connect to shared memory: Use the shmat system call to connect to a previously created shared memory object. This call will map the shared memory into the process’s address space and return a pointer to the shared memory.
3. Using shared memory: Reading and writing operations can be carried out on shared memory using pointers. Multiple processes can exchange data in shared memory through these pointers.
4. Detaching shared memory: Using the shmdt system call to detach shared memory from the address space of the current process. Once detached, the process will no longer be able to access that shared memory.
5. Delete shared memory: Use the shmctl system call to delete the shared memory object. This call will mark the shared memory object as invalid and release the related resources when no more processes are connected to the shared memory.

It should be noted that shared memory is an advanced inter-process communication mechanism that requires coordination and synchronization between multiple processes to ensure data consistency and accuracy.