Add script to copy hardware-configuration

bin/copy-hardware-configuration.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+TOP="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )/.."
+
+if [ $# != 1 ]; then
+    echo "usage: copy-hardware-configuration.sh name"
+    exit 1
+fi
+
+node=$1
+
+[ -e $node.nix ] && mv $node.nix $node.nix.bak
+
+scp root@$node:/etc/nixos/hardware-configuration.nix $node.nix