diff --git a/run.sh b/run.sh
new file mode 100755
index 0000000..76d8205
--- /dev/null
+++ b/run.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env sh
+
+set -o pipefail -o nounset -o errexit
+
+echo "${crond_line}" > "/etc/crontabs/root"
+crond -f -L /dev/stdout