#!/bin/bash

# 設(shè)置mysql的登錄用戶名和密碼(根據(jù)實(shí)際情況填寫)

mysql_user="root"

mysql_password="root"

mysql_host="localhost"

mysql_port="3306"

mysql_charset="utf8"

mysql_database="isajc"


# 備份文件存放地址(根據(jù)實(shí)際情況填寫)

backup_dir=/home/ftpuser/MySQL_backup


# 是否刪除過期數(shù)據(jù)

expire_backup_delete="ON"

expire_days=7

log_time=`date '+%Y-%m-%d %H:%M:%S'`

backup_time=`date +%Y%m%d%H%M`

welcome_msg="[${log_time}] Welcome to use MySQL backup tools!"


# 判斷mysql實(shí)例是否正常運(yùn)行
mysql_ps=`ps -ef |grep mysql |wc -l`

mysql_listen=`netstat -an |grep LISTEN |grep ${mysql_port}|wc -l`

if [ [${mysql_ps} == 0] -o [${mysql_listen} == 0] ]; then
echo "ERROR:MySQL is not running! backup stop!"
exit
else
echo ${welcome_msg}
fi

# 備份指定數(shù)據(jù)庫(kù)
mysqldump -h${mysql_host} -P${mysql_port} -u${mysql_user} -p${mysql_password} -B ${mysql_database} > ${backup_dir}/${mysql_database}-${backup_time}.sql

flag=`echo $?`

if [ ${flag} == "0" ];then
echo "database ${mysql_database} success backup to ${backup_dir}/${mysql_database}-${backup_time}.sql"
else
echo "database ${mysql_database} backup fail!"
fi

# 刪除過期數(shù)據(jù)
if [ "${expire_backup_delete}" == "ON" -a "${backup_dir}" != "" ];then
`find ${backup_dir}/ -type f -mtime +${expire_days}  -name  "*.sql"  | xargs rm -rf`
echo "Expired backup data delete complete!"
fi