NIC status in Linux

#!/bin/bash

NICLIST=`ifconfig | egrep '^eth[0-9] ' | awk '{ print $1 }'`


for nics in $NICLIST
do
niclink=(`ethtool $nics | awk '/Duplex/ { duplex=$2 }; /Link detected/ { link=$3 }; /Speed/ { speed=$2 } END { print link " " speed " " duplex }'`)

if [ "${niclink[0]}" = "yes" ]; then
speed="${niclink[1]}"
duplex="${niclink[2]}"
fi

printf "%7s %4s %9s %5s\n" $nics ${niclink[0]} $speed $duplex


speed=""
duplex=""
done


Note : Power-1 and UTM-1 There are differences as the nic name changes