分享一个自动编写MySQL数据库备份脚本

吾爱主题阅读：162 2024-04-02 18:54:12 评论：0

其实主要是为了偷懒，所以就搞了一个自动编写MySQL数据库备份脚本，每次写备份脚本传参就可以了，仅供参考。

1. MySQL备份模板(上传到下载平台)

#!/bin/bash
#################################
# copyright by hwb
# DATE:2020-12-03
# 用途：MYSQL备份模板
#################################
#定义
db_host=localhost
db_port=3306
db_name=mysql_prod
db_user=root
db_pwd=password
backup_path="/data/backup"
# view,function,procedure,event,trigger
output_type='view,function,procedure,event,trigger'
today=`date +"%Y%m%d-%H%M%S"`
data_file=$backup_path/$db_name$today.sql
object_file="${backup_path}/obj_${db_name}$today.sql"
log_file="/home/scripts/mysql_backup.log"
mysql_cmd="mysql -u${db_user} -p${db_pwd} -h${db_host} -P${db_port} "
mysqldump_cmd="mysqldump -u${db_user} -p${db_pwd} -h${db_host} -P${db_port} $db_name "
#调用函数库
[ -f /etc/init.d/functions ] && source /etc/init.d/functions
export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
source /etc/profile
#Require root to run this script.
[ $(id -u) -gt 0 ] && echo "请用root用户执行此脚本！" && exit 1
[ -d $backup_path ] || mkdir -p $backup_path
#[ ! -n "$5" ] && echo -e "[31m Usage: $0 IP 端口实例名用户名 '密码' [0m" && exit 1
function mysql_backup()
{
echo ""
echo -e "[33m***********************************************mysql数据库备份****************************************************[0m"
echo -e "[36m**************备份数据库数据到$data_file**************[0m"
#A partial dump from a server that has GTIDs will by default include the GTIDs of all transactions, even those that changed suppressed parts of the database. If you don't want to restore GTIDs, pass --set-gtid-purged=OFF. To make a complete dump, pass --all-databases --triggers --routines --events
$mysqldump_cmd --single_transaction -R -E --flush-logs --master-data=2 --set-gtid-purged=OFF > $data_file
if [ $? -eq 0 ];then
action "[$today]>>>完成数据库${db_name}数据备份" /bin/true
echo "[$today]>>>完成数据库${db_name}数据备份" >> ${log_file}
else
action "[$today]>>>数据库${db_name}备份失败，请检查相关配置！" /bin/false
echo "[$today]>>>数据库${db_name}备份失败，请检查相关配置！" >> ${log_file}
exit 1
fi
echo -e "[36m*******备份${db_name}函数、视图等定义到$object_file***********[0m"
cat > $object_file<<EOF
ouput object‘s definition for database "$db_name"
ouput time: $(date "+%Y-%m-%d %H:%M:%S")
ouput object type: $output_type
EOF
echo "">> $object_file
echo "">> $object_file
# 视图
if [[ $output_type == *"view"* ]]
then
echo "-- ------------------------------------------------------------" >> $object_file
echo "-- views" >> $object_file
echo "-- ------------------------------------------------------------" >> $object_file
#让 MySQL不输出列名可以用-N 或者--skip-column-names参数
$mysql_cmd --skip-column-names
-e "select concat('SHOW CREATE VIEW ',table_schema,'.',table_name,';') from information_schema.views where table_schema='$db_name'" |
sed 's/;/\G/g' | $mysql_cmd $db_name |
sed 's/Create View: /kk_begin /g' | sed 's/[ ]*character_set_client:/; kk_end/g' |
sed -n '/kk_begin/{:a;N;/kk_end/!ba;s/.*kk_begin|kk_end.*//g;p}' >> $object_file
fi
# 函数
if [[ $output_type == *"function"* ]]
then
echo "-- ------------------------------------------------------------" >> $object_file
echo "-- function" >> $object_file
echo "-- ------------------------------------------------------------" >> $object_file
$mysql_cmd --skip-column-names
-e "select concat('SHOW CREATE FUNCTION ',routine_schema,'.',routine_name,';') from information_schema.routines where routine_schema='$db_name' and ROUTINE_TYPE='FUNCTION'" |
sed 's/;/\G/g' | $mysql_cmd $db_name |
sed 's/Create Function: /kk_begin delimiter $$ /g' | sed 's/[ ]*character_set_client:/$$ delimiter ; kk_end/g' |
sed -n '/kk_begin/{:a;N;/kk_end/!ba;s/.*kk_begin|kk_end.*//g;p}' >> $object_file
fi
# 存储过程
if [[ $output_type == *"procedure"* ]]
then
echo "-- ------------------------------------------------------------" >> $object_file
echo "-- procedure" >> $object_file
echo "-- ------------------------------------------------------------" >> $object_file
$mysql_cmd --skip-column-names
-e "select concat('SHOW CREATE PROCEDURE ',routine_schema,'.',routine_name,';') from information_schema.routines where routine_schema='$db_name' and ROUTINE_TYPE='PROCEDURE'" |
sed 's/;/\G/g' | $mysql_cmd $db_name |
sed 's/Create Procedure: /kk_begin delimiter $$ /g' | sed 's/[ ]*character_set_client:/$$ delimiter ; kk_end/g' |
sed -n '/kk_begin/{:a;N;/kk_end/!ba;s/.*kk_begin|kk_end.*//g;p}' >> $object_file
fi
# 事件
if [[ $output_type == *"event"* ]]
then
echo "-- ------------------------------------------------------------" >> $object_file
echo "-- event" >> $object_file
echo "-- ------------------------------------------------------------" >> $object_file
$mysql_cmd --skip-column-names
-e "select concat('SHOW CREATE EVENT ',EVENT_SCHEMA,'.',EVENT_NAME,';') from information_schema.events where EVENT_SCHEMA='$db_name'" |
sed 's/;/\G/g' | $mysql_cmd |
sed 's/Create Event: /kk_begin delimiter $$ /g' | sed 's/[ ]*character_set_client:/$$ delimiter ; kk_end/g' |
sed -n '/kk_begin/{:a;N;/kk_end/!ba;s/.*kk_begin|kk_end.*//g;p}' >> $object_file
fi
# 触发器
if [[ $output_type == *"trigger"* ]]
then
echo "-- ------------------------------------------------------------" >> $object_file
echo "-- trigger" >> $object_file
echo "-- ------------------------------------------------------------" >> $object_file
$mysql_cmd --skip-column-names
-e "select concat('SHOW CREATE TRIGGER ',TRIGGER_SCHEMA,'.',TRIGGER_NAME,';') from information_schema.triggers where TRIGGER_SCHEMA='$db_name';" |
sed 's/;/\G/g' | $mysql_cmd $db_name|
sed 's/SQL Original Statement: /kk_begin delimiter $$ /g' | sed 's/[ ]*character_set_client:/$$ delimiter ; kk_end/g' |
sed -n '/kk_begin/{:a;N;/kk_end/!ba;s/.*kk_begin|kk_end.*//g;p}' >> $object_file
fi
# ^M, you need to type CTRL-V and then CTRL-M
sed -i "s/^M//g" $object_file
#清理过期备份
find ${backup_path} -mtime +10 -type f -name '*.sql' -exec rm -f {} ;
if [ $? -eq 0 ];then
action "[$today]>>>完成数据库${db_name}过期备份清理" /bin/true
echo "[$today]>>>完成数据库${db_name}过期备份清理" >> ${log_file}
else
action "[$today]>>>数据库${db_name}过期备份清理失败，请检查相关配置！" /bin/false
echo "[$today]>>>数据库${db_name}过期备份清理失败，请检查相关配置！" >> ${log_file}
exit 1
fi
echo -e "[33m**********************************************完成${db_name}数据库备份**********************************************[0m"
cat > /tmp/mysql_backup.log << EOF
mysql地址：${db_host}
mysql端口：${db_port}
mysql实例名：${db_name}
数据备份文件：${data_file}
定义备份文件：${object_file}
EOF
cat /tmp/mysql_backup.log
echo -e "e[1;31m 以上信息保存在/tmp/mysql_backup.log文件下 e[0m"
echo -e "[33m*******************************************************************************************************************[0m"
echo ""
}
mysql_backup

2. 自动编写MySQL数据库备份脚本

#!/bin/bash
###################################################################
# copyright by hwb
# DATE: 2020-12-04
# 用途：自动编写MySQL备份脚本
###################################################################
#脚本外变量
mysql_path="/home/scripts"
script_name="mysql_backup.sh"
mysql_date=`date +"%Y-%m-%d-%H:%M:%S"`
#脚本内变量
db_host="localhost"
db_port="53306"
db_name="dbname"
db_user="root"
db_pwd="xxxx"
backup_path="/data/backup"
bk_backup_path=`echo $backup_path | sed 's:/:\/:g'`
bk_db_pwd=`echo $db_pwd | sed 's:/:\/:g'`
#调用函数库
[ -f /etc/init.d/functions ] && source /etc/init.d/functions
export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
source /etc/profile
#root用户执行脚本
[ $(id -u) -gt 0 ] && echo "请用root用户执行此脚本！" && exit 1
#判断目录是否存在
[ -d $mysql_path ] || mkdir -p $mysql_path
[ -d $backup_path ] || echo "mysql数据库备份目录[$backup_path]不存在，请确认参数是否正确！"
[ -d $backup_path ] || exit 1
function bk_mysqlbackup(){
echo ""
echo -e "[33m**************************自动配置mysql数据库备份脚本[$mysql_path/$script_name]**************************[0m"
echo ""
echo -e "[36m Usage: $0 [0m"
echo ""
[ -f $mysql_path/$script_name ] && echo "${mysql_path}已存在脚本[${script_name}],请检查相关配置！" && exit 1
wget https://app.fslgz.com/portal/api/public/fs/association/file/downLoad?uploadId=784001405093478400 -O /opt/mysql_backup_template.sh
mv /opt/mysql_backup_template.sh $mysql_path/$script_name
#处理windows传linux的脚本格式问题(注意空格位置不能多不能少)
vi +':w ++ff=unix' +':q' ${mysql_path}/${script_name}
sed -i "s/localhost/${db_host}/g" $mysql_path/$script_name
sed -i "s/3306/${db_port}/g" $mysql_path/$script_name
sed -i "s/mysql_prod/${db_name}/g" $mysql_path/$script_name
sed -i "s/root/${db_user}/g" $mysql_path/$script_name
sed -i "s/password/${bk_db_pwd}/g" $mysql_path/$script_name
sed -i "s#/data/backup#${bk_backup_path}#g" $mysql_path/$script_name
action "完成mysql备份脚本[$mysql_path/$script_name]编写！" /bin/true
chmod u+x $mysql_path/$script_name
#配置定时任务
echo "30 11 * * * /bin/bash ${mysql_path}/${script_name} " >> /var/spool/cron/root
if [ $? -eq 0 ];then
echo ""
action "[$mysql_date]>>>完成数据库备份定时任务配置" /bin/true
else
echo ""
action "[$mysql_date]>>>定时任务配置失败，请检查相关配置！" /bin/false
fi
echo ""
echo "|------------------------------------定时任务内容------------------------------------|"
crontab -l
echo ""
echo "|---------------mysql备份脚本[$mysql_path/$script_name]内容如下---------------|"
cat $mysql_path/$script_name
echo -e "[33m************************************完成mysql数据库备份脚本配置*****************************************[0m"
echo ""
}
bk_mysqlbackup