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#!/bin/bash

#author:        InBi

#date:          2011-08-05

#role:          backup files periodically.

#website:       http://www.itwhy.org/2011/07-28/707.html

##################################################

LogFile=/backup/log/`date +"%Y-%m"`.log

SourceDir=/var/RDfile

BakDir=/backup

RetainDay=20

ProjectLst=/backup/project.lst

##################################################

DATE=`date +"%Y-%m-%d"`

echo "backup start at $(date +"%Y-%m-%d %H:%M:%S")" >$LogFile

echo "--------------------------------------------------" >>$LogFile

cd $BakDir

PROJECTLIST=`cat $ProjectLst`

for Project in $PROJECTLIST

do

       ProjectData=$SourceDir/$Project

       DestDir=$BakDir/$Project

       PackFile=$DATE.$Project.tgz

       if [ -f $BakDir/$PackFile ]

       then

              echo "backup file have exist !" >>$LogFile

       else

              cp -RHpf $ProjectData $DestDir >/dev/null

              tar -zcvf $PackFile $Project >/dev/null

              echo "backup $Project done into $PackFile" >>$LogFile

              rm -rf $Project

       fi

done

find $Bakdir -type f -mtime +$RetainDay -name "*.$Project.tgz" -exec rm {} \; >/dev/null

echo "--------------------------------------------------" >>$LogFile

echo "backup end at $(date +"%Y-%m-%d %H:%M:%S")" >>$LogFile

echo " " >> $LogFile

exit 0