Initial Upload

ln.c

@@ -0,0 +1,14 @@
+#include "types.h"
+#include "stat.h"
+#include "user.h"
+
+int main(int argc, char *argv[]) {
+    if (argc != 3) {
+        printf(2, "Usage: ln old new\n");
+        exit();
+    }
+    if (link(argv[1], argv[2]) < 0) {
+        printf(2, "link %s %s: failed\n", argv[1], argv[2]);
+    }
+    exit();
+}