#!/bin/bash
IFILE=/etc/network/interfaces
ifdown eth0
if test $1 = "static" ; then 
    cp $IFILE.static $IFILE
    echo "Static interfaces loaded!"
elif test $1 = "dhcp" ; then
    cp $IFILE.dhcp $IFILE
    echo "DHCP interfaces loaded!"
else
    echo "Parameter must be static or dhcp"
fi
ifup eth0