Using the following c program, use the read() command to read one line of data from data.txt, and the write() command to display the line of text to the console display from the file data.txt.

#include #include #include #include #include

char buffer[256];

int main(int argc, char *argv[]) { int i, n, fd;

if (argc != 2) { printf("Error : Invalid # of args "); return (-1); }

printf("argv[0]=%s argv[1] = %s ", argv[0], argv[1]);

if ((fd = open(argv[1], O_RDONLY)) == -1) { perror("Can not open file data.txt"); return(-1); }

n = read(fd, buffer, sizeof(buffer) - 1); if (n <= 0) { perror("Can not open file data.txt"); return(-1); }

printf("The number of bytes read was %d ", n);

//your code here

if (close(fd) == -1) { perror("Can not close the file!"); return (-1); } }

EX: ./a.out data.txt

 Hello WORLD