diff --git a/cluster_setup/user_delete.sh b/cluster_setup/user_delete.sh
new file mode 100644
index 0000000000000000000000000000000000000000..d30afb58f8db5667009f65461460d1a4c24c35f4
--- /dev/null
+++ b/cluster_setup/user_delete.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+## remove users when I've messed up the configuration
+
+n=40
+for i in `seq -w 1 ${n}`
+do
+  echo $i;
+  userdel -rf test${i}
+done;