As a network person running a Mac I find it hand to know what IP my various connections have, in addition to some other info. In order to do this, I use a program called Geektool . Once you have GeekTool up and going you can add the following code into a new Geeklet.
!/bin/bash
varSSID1=`system_profiler SPAirPortDataType | grep -A 2 -e "Current Network Information:" | tr '\n' ' ' | tr ':' ' ' | awk '{print $4}'`
varCHAN1=`system_profiler SPAirPortDataType | grep -e "Channel: " | awk '{print $2}'`
varEXTERNAL1=`curl --connect-timeout 5 -s http://checkip.dyndns.org/ | grep "Current IP Address" | awk '{print $6}' | cut -f 1 -d "<"`
varEXTERNALv6=`curl --connect-timeout 5 -s http://checkipv6.dyndns.org/ | grep "Current IP Address" | awk '{print $6}' | cut -f 1 -d "<"`
varWIRED1=`ifconfig en0 | grep "inet " | grep -v 127.0.0.1 | awk '{print $2}'`
varWIREDv6=`ifconfig en0 | grep "inet6 " | grep -v 127.0.0.1 | awk '{print $2}'`
varWIRELESS1=`ifconfig en1 | grep "inet " | grep -v 127.0.0.1 | awk '{print $2}'`
varWIRELESSv6=`ifconfig en1 | grep "inet6 " | grep -v 127.0.0.1 | awk '{print $2}'`
varSSL1=`ifconfig jnc0 | grep "inet " | grep -v 127.0.0.1 | awk '{print $2}'`
if [ “$varEXTERNAL1” != “” ]
then
echo “External : $varEXTERNAL1”
else
echo “External : INACTIVE”
fi
if [ “$varEXTERNALv6” != “” ]
then
echo “External : $varEXTERNALv6”
else
echo “External : INACTIVE”
fi
if [ “$varWIRED1” != “” ]
then
echo “Wired : $varWIRED1”
else
echo “Wired : INACTIVE”
fi
if [ “$varWIREDv6” != “” ]
then
echo “WiredV6 : $varWIREDv6”
else
echo “WiredV6 : INACTIVE”
fi
if [ “$varWIRELESS1” != “” ]
then
echo “AirPort : $varWIRELESS1 SSID: $varSSID1”
else
echo “Airport : INACTIVE”
fi
if [ “$varWIRELESSv6” != “” ]
then
echo “AirPortV6 : $varWIRELESSv6”
else
echo “AirportV6 : INACTIVE”
fi
As you can see in the above screenshot it displays IP addresses (both IPv4 IPv6),external IP, and the Wireless SSID.
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