input=$1
if [ $input = "ip" ]
then
ifconfig|grep -w inet
elif [ $input = "ip6" ]
then
ifconfig|grep inet6
elif [ $input = "mac" ]
then
ifconfig|grep HWaddr
elif [ $input = "broadcast" ]
then
ifconfig|grep broadcast
elif [ $input = "mask" ]
then
ifconfig|grep mask
elif [ $input = "data" ]
then
ifconfig|grep bytes
elif [ $input = "help" ]
then
echo "ip"
echo "ip6"
echo "mac"
echo "broadcast"
echo "mask"
echo "data"
echo "help"
else
echo "others"
fi
