void lessthan_command (list_ref list){
   char* viewitem;
   setmove_list(list, MOVE_PREV);
   viewitem = viewcurr_list(list);
   printf ("%s\n", viewitem);
}

void greaterthan_command (list_ref list){
   char* viewitem;
   setmove_list(list, MOVE_NEXT);
   viewitem = viewcurr_list(list);
   printf ("%s\n", viewitem);
}