complete a - f and you will get your thumbs up

char * buf1[7];

buf1[0] = T;

buf1[1] = H;

buf1[2] = O;

buf1[3] = U;

buf1[4] = G;

buf1[5] = H;

buf1[6] = T;

char *buf2[7];

int nread, nwrite;

fd = open("file1.txt", O_RDWR);

(a)

nwrite = write(fd, buf1, 4);

(b)

lseek(fd, (offset_t) 2, SEEK_SET);

(c)

nwrite = write(fd, buf1, 5);

(d)

lseek(fd, (offset_t) -4, SEEK_END);

(e)

nread = read(fd, buf2, 4);

(f)

Enter the read-writer pointer values at the time instants in the following program. You may assume it is executed from the beginning to the end. Assume that the file, "file1.txt", exists and is empty. Enter the Read-Write Pointer (or, file pointer) values at time instants (a) through (f) char * buf1 [7]; buf1[0]= 'T'; bufi[1] = ' H '; bufi[2] = ' 0 '; buf1[3] = ' U '; buf1[4] = 'G'; buf1[5] = ' H '; bufi[6] = ' T '; char *buf2[7]; int nread, nwrite; fd= open("file1.txt", O_RDWR); (a) nwrite = write (fd, buf1, 4); (b) Iseek(fdd, (offset_t) 2, SEEK_SET); (c) nwrite = write (fd, buf1, 5); (d) Iseeke(fd, (offset_t) -4, SEEK_END); (e) nread = read(fd, buf2, 4); (f)