backup daily

 #!/bin/bash
 #
 #This is a test in book.thanks for Richard Blum.
 #Please put this file to crontab,thanks.
 #Please touch a new configuration file.
 #Daily_Archive - Archive designated files & directories
 #
 ##########################################################
 #
 #Gather Current Date.the format of date is only " date +%d%m%y".
 #
 #
 DATE=`date +%y%m%d`
 #
 echo $DATE
 #Set Archive File Name
 #
 FILE=backup$DATE.tar.gz
 #
 #Set Configuration and Destination File.The configuration file include directories that you want to backup.
 #
 CONFIG_FILE=/home/ach/test/shell-practices/backup-daily.conf
 DESTINATION=/home/ach/backup/$FILE
 #
 ############ Main Script ##################################
 #
 #Check Backup Config file exists
 #
 if [ -f $CONFIG_FILE ] #Make sure the config file still exists.
 then #If it existd,do nothing but continue on.
 echo
 else    #If it doesn't exist,issue error & exit script.
 echo
 echo "$CONFIG_FILE does not exist."
 echo "Backup not completed due to missing Configuration File."
 echo
 exit
 fi
 #
 #Build the names of all the files to backup
 #
 FILE_NO=    #Start on Line  of Config File
 exec < $CONFIG_FILE    #Redirect Std Input to name of Config File.
 #
 read FILE_NAME #read 1st record.
 #
  ]    #Create list of files to backup
 do
 #Make sure the file or directories exists.
 if [ -f $FILE_NAME -o -d $FILE_NAME ]
 then
 #If file exists, add its name to the list.
 FILE_LIST="$FILE_LIST $FILE_NAME"
 else
 #If file does not exist,issue warning.
 echo
 echo "FILE_NAME does not exist."
 echo "Obviously,I will not include it in this archive."
 echo "It is listed on line $FILE_NO of the config file."
 echo "Continuing to build archive list......"
 echo
 fi
 #
 FILE_NO=$[FILE_NO+] #Increase Line/File number by one.
 read FILE_NAME    #read next record.
 done
 #
 ############################################################
 #
 #Backup the files and compress archive
 #
 > /dev/null
 #To decompress use command : -xf (extract)
 #END with the backup-daily
 #Next is backup-hour,which will use a new method that can level directories.
 #
 #DAY=`date +%d`
 #MONTH=`date +%m`
 #TIME=`date +%M`
 #
 #mkdir -p $BASEDEST/$MONTH/$DAY
 #
 #DESTINATION=$BASEDEST/$MONTH/$DAY/$TIME.tar.gz
 #
 #
 #
 ##END