MYSQL_USER="da_admin"
MYSQL_PASS="password"
BACKUP_DIR=/home/sqlbackup/$(date +%Y-%m-%d_%H-%M-%S);
test -d "$BACKUP_DIR" || mkdir -p "$BACKUP_DIR"
# Get the database list, exclude information_schema
for db in $(mysql -B -s -u $MYSQL_USER --password=$MYSQL_PASS -e 'show databases' | grep -v information_schema | grep -v mysql |grep -v da_roundcube )
do
  # dump each database in a separate file
mysqldump -u $MYSQL_USER --password=$MYSQL_PASS "$db" > "$BACKUP_DIR/$db.sql"
done