CNWHUD/shell-frags/obtain_centos_mac.sh

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function obtain_centos_mac()
{
DISTRO_TYPE="$(distro |awk '{print $1}'|tr '[:upper:]' '[:lower:]')"
DISTRO_VERSION=$(distro |awk '{print $2}'|awk -F '.' '{print $1}')
if [ $DISTRO_TYPE == "centos" ] && [ $DISTRO_VERSION == 6 ] ;
then
/sbin/ifconfig eth0|grep HWadd| awk '{print $NF}'|tr '[:upper:]' '[:lower:]'|sed 's/\:/-'/g
fi
if [ $DISTRO_TYPE == "centos" ] && [ $DISTRO_VERSION == 7 ] ;
then
/sbin/ifconfig eth0|grep ether| awk '{print $2}'|tr '[:upper:]' '[:lower:]'|sed 's/\:/-'/g
fi
}