#!/bin/sh set -e debootstrap_network=/etc/systemd/network/99-dhcp.network if grep -q '^Name=\\*' "${debootstrap_network}"; then primary_nic=$(ls -1 /sys/class/net | grep -v lo |sort | head -1) sed -i "s/^Name=e\\*/Name=${primary_nic})/" \ "${debootstrap_network}" systemctl restart systemd-networkd.service echo "Changed systemd network configuration" else echo "Systemd network configuration has already been changed" fi