user/ln.c

1#include "kernel/types.h"2#include "kernel/stat.h"3#include "user/user.h"45int6main(int argc, char *argv[])7{8  if(argc != 3){9    fprintf(2, "Usage: ln old new\n");10    exit(1);11  }12  if(link(argv[1], argv[2]) < 0)13    fprintf(2, "link %s %s: failed\n", argv[1], argv[2]);14  exit(0);15}16