From 7aabf03e2c6ec6d36659086b4a6fa6f776c4bfdf Mon Sep 17 00:00:00 2001
From: lissav <lissav@8638fb3e-16cb-4fca-ae20-7b5d299a9bcd>
Date: Mon, 16 Jul 2012 16:37:42 +0000
Subject: [PATCH] add comments to explain

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@13301 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
---
 xCAT-server/share/xcat/scripts/xdcpappend.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/xCAT-server/share/xcat/scripts/xdcpappend.sh b/xCAT-server/share/xcat/scripts/xdcpappend.sh
index 94b66fd25..49aba4770 100755
--- a/xCAT-server/share/xcat/scripts/xdcpappend.sh
+++ b/xCAT-server/share/xcat/scripts/xdcpappend.sh
@@ -26,9 +26,11 @@ for i in $*; do
   filebackup="$nodesyncfiledirorg$orgfile"
   # now do the work
   mkdir -p $filebackupdir 
+  # if there does not exist an original backup, make one
   if [ ! -f "$filebackup" ]; then
     cp -p $orgfile $filebackup
   fi
+  # copy original backup to the local file and append
   cp -p $filebackup $orgfile
   cat $appendfile >> $orgfile