Interim stage.

	Monitor script logs every 30 mins.
	compare.sh has some test file reading and comparison functions
But the time has come to wrap it all into one script.
This will be called monitor.sh

3 files changed, 44 insertions, 2 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'
diff --git a/monitor.sh b/monitor.sh
index e902c86..bebc07c 100755
--- a/monitor.sh
+++ b/monitor.sh
@@ -1,4 +1,4 @@
-#! /bin/sh -
+#! /bin/bash -
 
 #  SJP 16 August 2014
 #  Monitor my external IP address
@@ -13,11 +13,15 @@ else
 	datafile=`mktemp --tmpdir=data`
 fi
 
-echo "datafile = $datafile"
+# echo "datafile = $datafile"
 
 ip=$(curl ifconfig.me/ip)
+[ ${#ip} = 0 ] && ip="Timed out"
+# Could also do [ -z $ip ]
+ 
 dt=$(\date  +%Y-%m-%dT%T%:z)
 
+
 echo -e "$dt\t$ip" >> $datafile
 
 
diff --git a/readme.md b/readme.md
deleted file mode 100644
index e69de29..0000000
--- a/readme.md
+++ /dev/null