mysql backup database database structure

mysqldump -h127.0.0.1 -P3306 -uroot -proot --add-locks -q -d dbname > /tmp/dbname.sql
mysqldump -h127.0.0.1 -P3306 -uroot -pr00t --add-locks -q -d dbname | sed 's/AUTO_INCREMENT=[0-9]*\s*//g' > /tmp/dbname.sql
去掉自增键