1. 
   

 

d. [6] Assume that a file "test.file" exists and the file has only one word "Hello" in its first line. What is the message do you seen after running the following C program: #include #include #include #include int main(int argc, char *argv[]) { pid t chpid; int fd, variable, status; char ch; variable = 9; fd = open("test.file", O_RDONLY); chpid = fork(); if (choid != 0) { } else { /* Executed only by the child */ variable = 42; } wait(&status); } close(fd); printf("The child has changed the variable to: %d ", variable); printf("The child has also closed the file. "); return(0); printf("The variable is now: %d ", variable); if (read(fd, &ch, 1) < 0) { perror("READ failed"); return(1); printf("Read from the file: %s ", &ch); | return(0);