#include <stdio.h>
#include <sys/ipc.h>
#include <sys/shm.h>

int main()
{
    
    key_t key = ftok("shmfile", 65);

    
    int shmid = shmget(key, 1024, 0666 | IPC_CREAT);


char* str = (char*)shmat(shmid, (void*)0, 0);

    printf("Write Data: ");
    fgets(str, 1024, stdin);

    printf("Data written in memory: %s\n", str);

    
    shmdt(str);

    return 0;
}

#include <stdio.h>
#include <sys/ipc.h>
#include <sys/shm.h>

int main()
{

    key_t key = ftok("shmfile", 65);

    
    int shmid = shmget(key, 1024, 0666 | IPC_CREAT);

   
    char* str = (char*)shmat(shmid, (void*)0, 0);

    printf("Data read from memory: %s\n", str);

    
    shmdt(str);


    shmctl(shmid, IPC_RMID, NULL);

    return 0;
}