From 74387acbb5a4e6966d93c74d32865307deaf6bb2 Mon Sep 17 00:00:00 2001
From: jerrm <jerrm@users.noreply.github.com>
Date: Sat, 6 Feb 2021 23:00:50 -0500
Subject: [PATCH] fix "integer expression expected" errors

---
 dnsapi/dns_duckdns.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dnsapi/dns_duckdns.sh b/dnsapi/dns_duckdns.sh
index 618e12c6..f196506d 100755
--- a/dnsapi/dns_duckdns.sh
+++ b/dnsapi/dns_duckdns.sh
@@ -112,7 +112,7 @@ _duckdns_rest() {
   param="$2"
   _debug param "$param"
   url="$DuckDNS_API?$param"
-  if [ "$DEBUG" -gt 0 ]; then
+  if [ -n "$DEBUG" ] && [ "$DEBUG" -gt 0 ]; then
     url="$url&verbose=true"
   fi
   _debug url "$url"
@@ -121,7 +121,7 @@ _duckdns_rest() {
   if [ "$method" = "GET" ]; then
     response="$(_get "$url")"
     _debug2 response "$response"
-    if [ "$DEBUG" -gt 0 ] && _contains "$response" "UPDATED" && _contains "$response" "OK"; then
+    if [ -n "$DEBUG" ] && [ "$DEBUG" -gt 0 ] && _contains "$response" "UPDATED" && _contains "$response" "OK"; then
       response="OK"
     fi
   else