diff --git a/cleanupRunDirs.sh b/cleanupRunDirs.sh
new file mode 100644
index 0000000..18694d4
--- /dev/null
+++ b/cleanupRunDirs.sh
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+set -uo pipefail
+
+# when executed as executable file in "git for windows" bash some things won't work, so always run with prefixed command
+rm -rf /tmp/zeitlaeufer_*;