Created
October 7, 2013 11:15
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WhereWhen
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#!/bin/bash | |
#clear | |
# Ping to get ART table (in case there were no activity for some time) | |
/sbin/ping -t 1 255.255.255.255 | |
#echo ----------------------- | |
# Scan network and find UG (U - Up, G - Gateway) | |
netstat=$(/usr/sbin/netstat -nr | grep UG) | |
#echo Netstat output: $netstat | |
#echo ----------------------- | |
# Get only IP address | |
gatewayip=$(echo $netstat | cut -d ' ' -f 2) | |
#echo Gateway IP address: $gatewayip | |
#echo ----------------------- | |
arpoutput=$(echo "/usr/sbin/arp -an | grep '($gatewayip)'") | |
arpgateway=$(eval $arpoutput) | |
gatewaymac=$(echo $arpgateway | cut -d ' ' -f 4) | |
# Check if gateway MAC addres is empty | |
# => you are offline | |
if [ "$gatewaymac" == "" ] | |
then | |
gatewaymac="0:00:00:00:00:00" | |
fi | |
#echo Gateway MAC address: $gatewaymac | |
#echo ----------------------- | |
# Get timestamp | |
timestamp=`date +%Y%m%d%H%M` | |
#echo $timestamp | |
#echo ----------------------- | |
# Create input string (what will be witten to a file) | |
input=$timestamp#$gatewaymac | |
#echo $input | |
#echo ----------------------- | |
# Write to file | |
echo $input >> /Users/user/Documents/WhereWhenLog.txt | |
#echo DONE |
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