add compare script for gluster

gluster/compare.sh

+#!/bin/sh
+
+if [ "$1" != "--internal" ] ; then
+    [ -n "$1" ] || exit
+    find $1 -type f -print0 | xargs -0 $0 --internal
+    exit
+fi
+
+shift
+
+echo "check $(dirname "$1") ..."
+for f in "$@" ; do
+    TP="/var/ftp/$f"
+    test -e "$TP" || echo "$f"
+done | tee -a $0.log