#! /bin/bash

TIMESTAMP=$(date +"%F")
BACKUP_DIR="/home/pi/$TIMESTAMP"
HOST=192.168.1.8
MYSQL_USER="root"
MYSQL=mysql
MYSQL_PASSWORD="qwerty"
MYSQLDUMP=mysqldump

mkdir -p "$BACKUP_DIR/mysql"

databases=`$MYSQL --host=$HOST --user=$MYSQL_USER -p$MYSQL_PASSWORD -e "SHOW DATABASES;" | grep -Ev "(Database|information_schema|performance_schema)"`

for db in $databases; do
  $MYSQLDUMP -h $HOST --force --opt --user=$MYSQL_USER -p$MYSQL_PASSWORD --databases $db > "$BACKUP_DIR/mysql/$db.sql"
done