#!/bin/bash#全備方式，一般在從機上執行，適用于小中型mysql數據庫#刪除15天以前備份#作者：fafu_li#時間：2015.08.10source /etc/profile    #加載系統環境變量source ~/.bash_profile  #加載用戶環境變量set -o nounset       #引用未初始化變量時退出#set -o errexit      #執行shell命令遇到錯誤時退出user="root"password="123456"host="localhost"port="3306"#需備份的數據庫，數組db=("test")#備份時加鎖方式，#MyISAM為鎖表--lock-all-tables，#InnoDB為鎖行--single-transactionlock="--single-transaction"mysql_path="/usr/local/mysql"backup_path="${mysql_path}/backup"date=$(date +%Y-%m-%d_%H-%M-%S)day=15backup_log="${mysql_path}/backup.log"#建立備份目錄if [ ! -e $backup_path ];then  mkdir -p $backup_pathfi#刪除以前備份find $backup_path -type f -mtime +$day -exec rm -rf {} /; > /dev/null 2>&1echo "開始備份數據庫：${db[*]}"#備份并壓縮backup_sql(){  dbname=$1  backup_name="${dbname}_${date}.sql"  #-R備份存儲過程，函數，觸發器  mysqldump -h $host -P $port -u $user -p$password $lock --default-character-set=utf8 --flush-logs -R $dbname > $backup_path/$backup_name    if [[ $? == 0 ]];then    cd $backup_path    tar zcpvf $backup_name.tar.gz $backup_name    size=$(du $backup_name.tar.gz -sh | awk '{print $1}')    rm -rf $backup_name    echo "$date 備份 $dbname($size) 成功 "  else    cd $backup_path    rm -rf $backup_name    echo "$date 備份 $dbname 失敗 "  fi}#循環備份length=${#db[@]}for (( i = 0; i < $length; i++ )); do    backup_sql ${db[$i]} >> $backup_log 2>&1doneecho "備份結束,結果查看 $backup_log"du $backup_path/*$date* -sh | awk '{print "文件:" $2 ",大小:" $1}'