Update install

hooks/install

@@ -8,7 +8,7 @@ set -e
 status-set maintenance "Changing Default gateway"
 
 GATEWAY="$(config-get gateway)"
-OLD_GATEWAY_IP=`cat /etc/network/interfaces | grep gateway | awk '{print $2}'`
+OLD_GATEWAY_IP=`grep gateway /etc/network/interfaces | awk '{print $2}'`
 GATEWAY_IP=`echo "$GATEWAY" | awk -F "/" {'print $1'}`
 
 if [ -z "$GATEWAY" ]; then
@@ -24,26 +24,26 @@ if [ "$GATEWAY_IP" == "$OLD_GATEWAY_IP" ]; then
 fi
 
 
-apt-get install -y sipcalc
+apt install -y sipcalc
 
 GATEWAY_NET=`sipcalc $GATEWAY | grep "Network address" | awk '{print $4}'`
 
 old_IFS=$IFS
 IFS=$'\n'
 LINE=0
-for INTERFACE in  $(cat -n /etc/network/interfaces | grep address); 
+for INTERFACE in  $(grep adress /etc/network/interfaces); 
 do
 	ADDRESS=`echo $INTERFACE | awk '{ print $3}'`
 	ADDRESS_NET=`sipcalc $ADDRESS | grep "Network address" | awk '{print $4}'`
 	if [ "$ADDRESS_NET" == "$GATEWAY_NET" ]; then
-		LINE=`echo $INTERFACE | awk '{ print $1}'`
+		LINE=`address'`
 	fi
 done
 IFS=$old_IFS
 
 if [ "$LINE" -gt 0 ]; then
 	juju-log "Default gateway $GATEWAY_IP is setting..."
-	sed -i "${LINE}i\  gateway $GATEWAY_IP" /etc/network/interfaces
+	sed -i "/address/i\  gateway $GATEWAY_IP" /etc/network/interfaces
 	if [ ! -z "$OLD_GATEWAY_IP" ]; then
 		juju-log "Old default gateway $OLD_GATEWAY_IP removing..."
 		sed -i "/${OLD_GATEWAY_IP}/d" /etc/network/interfaces