1 files changed, 38 insertions, 0 deletions
diff --git a/compare.sh b/compare.sh
new file mode 100755
index 0000000..1db6a21
--- /dev/null
+++ b/compare.sh
@@ -0,0 +1,38 @@
+#!/bin/bash -
+# SJP August 2014
+# Reads logfile of IP address records created by monitor.sh
+# When IP address changes it sends an email"
+
+
+cd ~/mail/monitor
+
+if (test -e data/tmp.*) then
+	datafile=$(ls data/tmp.*)
+else
+	exit
+fi
+
+
+#i=0
+#while read line
+#do
+#	i=$[i+1]
+#	echo $i, $line
+#done < $datafile 
+
+# Get the IP address from the first line 
+read firstline < $datafile
+
+firstip=$(echo $firstline |  awk '{ print $2 }')
+
+# sec=$(echo $firstline |  awk '{ print $1 }')
+
+echo "First = $firstip"
+
+lastline=$(tail -1 $datafile)
+
+lastip=$(echo $lastline | awk '{ print $2 }')
+
+echo "Last = $lastip"
+
+[ "$lastip" = "$firstip" ] && echo 'match' || echo 'different'