don't try to delete DOMAINS_TXT on early failure when not yet set

diff --git a/letsencrypt.sh b/letsencrypt.sh
index 9b5dba022e900bf01842a379519caf1cafe24c70..dad47669283b9371ed6262ae5f70f0cf34077f67 100755 (executable)
--- a/letsencrypt.sh
+++ b/letsencrypt.sh
@@ -251,7 +251,7 @@ http_request() {
     fi
 
     # remove temporary domains.txt file if used
-    [[ -n "${PARAM_DOMAIN:-}" ]] && rm "${DOMAINS_TXT}"
+    [[ -n "${PARAM_DOMAIN:-}" && -n "${DOMAINS_TXT:-}" ]] && rm "${DOMAINS_TXT}"
     exit 1
   fi