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- #!/bin/bash
- #Shell Command For Backup MySQL Database Everyday Automatically By Crontab
- USER=root
- PASSWORD="password"
- HOSTNAME="10.70.49.47"
- KEEPDATE="15"
- BACKUP_DIR=/root/dbbackup/db/ #备份文件存储路径
- LOGFILE=${BACKUP_DIR}test.log #日记文件路径
- DATE=`date '+%Y%m%d-%H%M'` #日期格式(作为文件名)
- DUMPFILE=$DATE.sql #备份文件名
- ARCHIVE=$DATE.sql.tgz #压缩文件名
- OPTIONS="-h$HOSTNAME -u$USER -p$PASSWORD --all-databases"
- #mysqldump -help
- #判断备份文件存储目录是否存在,否则创建该目录
- if [ ! -d $BACKUP_DIR ] ;
- then
- mkdir -p "$BACKUP_DIR"
- fi
- #开始备份之前,将备份信息头写入日记文件
- echo " " >> $LOGFILE
- echo " " >> $LOGFILE
- echo "———————————————–" >> $LOGFILE
- echo "BACKUP DATE:" $(date +"%y-%m-%d %H:%M:%S") >> $LOGFILE
- echo "———————————————– " >> $LOGFILE
- #切换至备份目录
- cd $BACKUP_DIR
- #使用mysqldump 命令备份制定数据库,并以格式化的时间戳命名备份文件
- mysqldump $OPTIONS > $DUMPFILE
- #判断数据库备份是否成功
- if [[ $? == 0 ]]; then
- #创建备份文件的压缩包
- tar czvf $ARCHIVE $DUMPFILE >> $LOGFILE 2>&1
- #输入备份成功的消息到日记文件
- echo "[$ARCHIVE] Backup Successful!" >> $LOGFILE
- #删除原始备份文件,只需保 留数据库备份文件的压缩包即可
- rm -f $DUMPFILE
- else
- echo "Database Backup Fail!" >> $LOGFILE
- fi
- # 判断删除指定天数的备份
- find $BACKUP_DIR* -mtime +$KEEPDATE -exec rm {} \;
- #输出备份过程结束的提醒消息
- echo "Backup Process Done"
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