DBBackup.sh

#!/bin/bash
USER="root"
PASSWORD="PASS"
HOST="HOST"
mysql -u $USER -p$PASSWORD -h $HOST --silent -e 'SELECT table_schema "DB Name", Round(Sum(data_length + index_length) / 1024 / 1024, 1) "DB Size in Mb" FROM information_schema.tables GROUP BY table_schema;'
databases=`mysql -u $USER -p$PASSWORD -h $HOST --silent  -e "SHOW DATABASES;" | tr -d "| " | grep -v Database`
for db in $databases; do
    if [[ "$db" != "information_schema" ]] && [[ "$db" != "performance_schema" ]] && [[ "$db" != "mysql" ]] && [[ "$db" != _* ]] ; then
        echo "Dumping database: $db"
        mysqldump -u $USER -p$PASSWORD -h $HOST --single-transaction  --order-by-primary --compress  --databases $db > `date +%Y%m%d`.$db.sql
       # mysqldump -u $USER -p$PASSWORD -h $HOST --single-transaction --column-statistics=0 --order-by-primary --compress  --databases $db > `date +%Y%m%d`.$db.sql
    fi
done
### Backup users and privileges
mysql -u $USER -p$PASSWORD -h $HOST --skip-column-names -A -e "SELECT CONCAT('CREATE USER ','\'',user,'\'@\'',host,'\'','  IDENTIFIED BY PASSWORD ','\'',authentication_string,'\';') from mysql.user;" > Users.sql
mysql -u $USER -p$PASSWORD -h $HOST --skip-column-names -A -e "SELECT CONCAT('SHOW GRANTS FOR ''',user,'''@''',host,''';') AS query FROM mysql.user WHERE user NOT IN ('root','pma','rdsadmin','mysql.sys')" | mysql -u $USER -p$PASSWORD -h $HOST --skip-column-names -A | sed 's/$/;/g' | sed 's/IDENTIFIED BY PASSWORD <secret>//g' >> Users.sql
echo "flush privileges;" >> Users.sql



##RDS backup 

--set-gtid-purged=off --single-transaction --opt -q --extended-insert