whole

#include <fcntl.h>
#include<stdio.h>
#include<stdlib.h>
char buf1[] = "welcome";
char buf2[] = "Computer science";
int main()
{
int fd;
if ((fd = creat("file_with_hole.txt",0777 )) < 0)
printf("creat error");
if (write(fd, buf1, 7) !=7)
printf("buf1 write error");
lseek(fd,100,SEEK_CUR);
if (write(fd, buf2, 16) != 16)
printf("buf2 write error");
exit(0);
}