IPC File communication

Practice_06/ipcFile.c

@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/wait.h>
+
+int main(){
+    int fd, pid, n;
+    char buf[10];
+
+    fd = open("test.txt", O_RDWR);
+    pid = fork();
+
+    if(pid == 0){
+        write(fd, "FOXLIVER", O_RDWR);
+        close(fd);
+        exit(0);
+    }else{
+        wait(0);
+        lseek(fd, 0, SEEK_SET);
+        n = read(fd, buf, 9);
+        buf[n] = '\0';
+        printf("%s \n", buf);
+        close(fd);
+    }
+
+    return 0;
+}