Add bash script to be called by cron to send alert when it's been more than 6hrs since last POST from device. Still need comments in script, and to figure out how to get cron sending external emails.

dead-man-qry.bash

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+NUMHRS=6
+
+# set now variable
+NOW=$(date -u +"%Y-%m-%d %H:%M:%S")
+
+RESULT=$(sqlite3 /var/www/tenniscourtsopen.com/courtsopen.db "select published_at from Alerts where datetime(published_at) > datetime('${NOW}', '-${NUMHRS} hours') order by datetime(published_at) limit 1")
+
+# this returns expected string!!!
+# echo $RESULT
+
+if [ -z "$RESULT" ]; then
+    echo "No data from device in last $NUMHRS hours."
+fi