shmperm
Shmperm is a command-line utility in Unix-like operating systems used for creating and managing shared memory segments. Shared memory is a mechanism that allows multiple processes to access the same memory space, facilitating efficient inter-process communication (IPC). Shmperm is typically used in conjunction with other IPC mechanisms such as semaphores and message queues.
The shmperm command is used to set or display the permissions of a shared memory segment. Permissions
The syntax for shmperm is generally as follows:
shmperm -i shmid -u user -g group -o others
Here, shmid is the identifier of the shared memory segment, user, group, and others are the permission
For example, to set the permissions of a shared memory segment with ID 1234 to 755 (read,
shmperm -i 1234 -u 7 -g 5 -o 5
Shmperm is a powerful tool for managing shared memory segments, but it requires careful handling to avoid