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#!/bin/bash
# Authors: Steven Shiau <steven _at_ clonezilla org>, Ceasar Sun <ceasar_dot_sun_at_gmail com>
# License: GPL
# Description: Get the MAC address of network card interface
ethx=$1
export LC_ALL=C
Usage() {
echo "Get the MAC address of network card interface"
echo "Usage:"
echo "$(basename $0) INTERFACE"
echo "Ex: $(basename $0) eth0"
}
[ -z "$ethx" ] && Usage && exit 1
if ! ifconfig -a 2>/dev/null | grep -i -q "\<$ethx\>"; then
exit 1
fi
# Ex: eth0 Link encap:Ethernet HWaddr 00:0C:29:81:A0:D5
# for FC17: ether 08:00:27:d2:9b:bc txqueuelen 1000 (Ethernet)
_nic_mac=$(LC_ALL=C ifconfig $ethx | grep $ethx | grep "HWaddr" | sed -e 's/^.*HWaddr \([0-9a-zA-Z\:]\+\).*$/\1/' | tr '[A-Z]' '[a-z]')
if [ -n "$_nic_mac" ]; then
echo $_nic_mac
else
LC_ALL=C ifconfig $ethx | grep ether | sed -e 's/^.*ether \([0-9a-zA-Z\:]\+\).*$/\1/' | tr '[A-Z]' '[a-z]'
fi
exit 0
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