--- a/cron.daily.ex	Fri Jan 18 21:59:55 2008 +0000
+++ b/cron.daily.ex	Mon Jan 21 09:43:24 2008 +0000
@@ -1,5 +1,7 @@
 #! /bin/bash
 
+command -v exigrey >/dev/null || exit 0
+
 # only output if terminal is connected
 test -t 0 || exec >/dev/null