From 1e4cadb6ec42e4653da793a0006a13aa64cdf732 Mon Sep 17 00:00:00 2001
From: Andrew Hurley <andrewmarkhurley@gmail.com>
Date: Sun, 22 Aug 2021 18:06:09 +1000
Subject: [PATCH] check sleeptime variable

---
 sync.sh | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/sync.sh b/sync.sh
index fc941d8..63480e7 100644
--- a/sync.sh
+++ b/sync.sh
@@ -108,8 +108,13 @@ while true; do
       modulus=4
     fi
   done
-  echo "- sleeping for $sleeptime seconds"
-  sleep $sleeptime
+  if [[ -z $sleeptime ]]; then
+    echo "sleeptime error"
+    exit 1
+  else
+    echo "- sleeping for $sleeptime seconds"
+    sleep $sleeptime
+  fi
 done
 
 exit 0