From 6fc7dc28a2c8966549d67523dcfc3f40317e092d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <ckoenig@posteo.de>
Date: Tue, 28 Jul 2020 10:25:57 +0200
Subject: [PATCH] Count elements of array instead
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Signed-off-by: Christian König <ckoenig@posteo.de>
---
 automated install/basic-install.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/automated install/basic-install.sh b/automated install/basic-install.sh
index d1a74b40..a4c93391 100755
--- a/automated install/basic-install.sh	
+++ b/automated install/basic-install.sh	
@@ -190,7 +190,7 @@ os_check() {
 
         IFS=" " read -r -a supportedOS < <(dig +short -t txt ${remote_os_domain} @ns1.pi-hole.net | tr -d '"')
 
-        if [ -z "$supportedOS" ]; then
+        if [ ${#supportedOS[@]} -eq 0 ]; then
             printf "  %b %bRetrieval of supported OS failed. Please contact support. %b\\n" "${CROSS}" "${COL_LIGHT_RED}" "${COL_NC}"
             exit 1
         else