Linux自动备份脚本，支持Centos和Debian等操作系统(网站文件备份和数据库备份) 

#!/bin/bash
#==========================Compress Web to FTP========================
HOST=usavps
WEB_DIR=/home/wwwroot/
BAK_DIR=/root/data_backup_dir
FTP_HOST=8.8.8.8
FTP_PORT=21
FTP_USER=user
FTP_PASS=passwd
#======================================================================
timestamp=`date +%s`; today=`date +%Y%m%d`; BakName=Web_${HOST}_${today}_${timestamp}.tar.gz
if [ ! -d $BAK_DIR ]; then mkdir -p $BAK_DIR; fi;
#------------------------Tar Web to BAK_DIR dir---------------------------
tar zcvf $BAK_DIR/$BakName -C $WEB_DIR .
find $BAK_DIR -mtime +7 -name '*.tar.gz' -exec rm -rf {} \;
#------------------------Transfer Web to ftp---------------------------
ftp -v -n $FTP_HOST $FTP_PORT << END
user $FTP_USER $FTP_PASS
type binary
prompt
put $BAK_DIR/$BakName $BakName
bye
END

建议使用最新的备份脚本 http://www.gaaaa.com/notes/shell-auto-backup-to-ftp.html