diff --git a/r.md b/r.md
index f2d4bf1..0e80057 100644
--- a/r.md
+++ b/r.md
@@ -40,3 +40,6 @@ for (i in dim1) {
     }
 }
 ```
+
+to run a script from the command line
+`R --vanilla < scriptfile.R`