The program first by fork () function, create separate Client process and the Server process, then msgget () function to create message queue by the Client using the msgsnd () function to send a message to the Server process, Server process, through the msgrcv () function from the message queue to receive the message through the msgsnd () function to send back a response to Client process, followed by sleep () function to wait for Client process from the message queue to read the message, delete the message queue.

message.c

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