The perfect MySQL backup script

Transferred from: https://www.cnblogs.com/leffss/p/7832047.html

#!/bin/bash# fully-prepared, generally on-board execution, for small-medium MySQL database # Delete 15 days ago Backup #fafu_li# time: 2015.08.10source/etc/profile #加载系统环境变量source ~/. Bash_profile #加载用户环境变量set-o nounset #引用未初始化变量时退出 #set-o errexit #执行shell命令遇到错误时退出user = "root" pas Sword= "123456" host= "localhost" port= "3306" #需备份的数据库, array db= ("test") #备份时加锁方式, #MyISAM为锁表--lock-all-tables,# InnoDB for lock line--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 "#建立备份目录if [!-e $backup _path]; Then mkdir-p $backup _pathfi# Delete the previous backup find $backup _path-type f-mtime + $day-exec rm-rf {} \;    >/dev/null 2>&1echo "Start Backup database: ${db[*]}" #备份并压缩backup_sql () {dbname=$1 backup_name= "${dbname}_${date}.sql" #-r Backup stored procedures, functions, triggers 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 $} ') RM-RF $backup _name echo "$date backup $dbname ($size) Successful" Else CD $backup _path RM-RF $backup _name EC Ho "$date backup $dbname Failed" fi} #循环备份length =${#db [@]}for ((i = 0; i < $length; i++));  Do Backup_sql ${db[$i]} >> $backup _log 2>&1doneecho "Backup end, results view $backup _log" du $backup _path/* $date *-sh | awk ' {print ' file: ' $ $ ', size: ' $ '

Perfect MySQL backup script