Add a tool for visual zone diff

zonediff.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+DIFF=$(command -v colordiff)
+if [ -z "${DIFF}" ]; then
+	DIFF=$(command -v diff)
+	if [ -z "${DIFF}" ]; then
+		echo Can not find diff or colordiff, abort...
+		exit 1
+	fi
+fi
+
+if [ $(pwd) != /etc/nsd/GIT ]; then
+	echo Please start in /etc/nsd/GIT, abort...
+	exit 1
+fi
+
+for i in *.zone nsd.conf; do
+	if [ -f ../${i} ]; then
+		${DIFF} -u ../${i} ${i}
+	fi
+done
+