Postfix 电子邮件系统精要(11)

[root@mailserv2 virusalert]# more /usr/local/bin/data_backup.sh

#!/bin/bash

BackupPath=/var/data_bk

Mysql_bk_dir=$BackupPath/mysqlbk

Mail_bk_dir=$BackupPath/mailbk

LogFile=$BackupPath/backuplog

MailBoxDir=/var/mailbox

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

# define mysql variables                                                     #

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

NewFile="$Mysql_bk_dir"/postfix$(date +%Y%m%d).tgz

DumpFile="$Mysql_bk_dir"/postfix$(date +%Y%m%d).sql

OldFile="$Mysql_bk_dir"/postfix$(date +%Y%m%d --date='5 days ago').tgz

DbUser=root

DbPasswd=husb^R

DbName=postfix

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

#   mysql backup proccess                                                 #

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

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

echo $(date +"%y-%m-%d %H:%M:%S") >> $LogFile

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

#Delete Old File

if [ -f $OldFile ]

then

   rm -f $OldFile >> $LogFile 2>&1

   echo "[$OldFile]Delete Old File Success!" >> $LogFile

else

   echo "[$OldFile]No Old Backup File!" >> $LogFile

fi

if [ -f $NewFile ]

then

   echo "[$NewFile]The Backup File is exists,Can't Backup!" >> $LogFile

else

    cd $Mysql_bk_dir

/usr/local/mysql/bin/mysqldump -u $DbUser -p$DbPasswd --opt $DbName > $DumpFile

    tar czf $NewFile postfix$(date +%Y%m%d).sql >> $LogFile 2>&1

    echo "[$NewFile]Backup Success!" >> $LogFile

    rm -rf $DumpFile

fi

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

#     backup mail's user directories and files                                     #

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

MailFileBk=$Mail_bk_dir/mail$(date +%Y%m%d).tgz

OldMailFileBk=$Mail_bk_dir/mail$(date +%Y%m%d --date='14 days ago').tgz

if [ -f $OldMailFileBk ]

then

   rm -rf $OldMailFileBk

fi

if [  -f $MailFileBk ]

   then

   echo "[$MailFileBk]The Backup File is exists,Can't Backup!" >> $LogFile

   else

   cd /mail

   tar czf $MailFileBk mailbox  >> $LogFile 2>&1

fi

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