root@debian:~# mysqldump -u*** -p*** –database xxx > /root/xxx.sql
Warning: Using unique option prefix database instead of databases is deprecated and will be removed in a future release. Please use the full name instead.

root@debian:~# mysqldump -h localhost -p 3306 -u*** -p*** –database xxx > /www/xxx.sql
Warning: Using unique option prefix database instead of databases is deprecated and will be removed in a future release. Please use the full name instead.
mysqldump: Got error: 1044: Access denied for user ‘mall_hec8_com’@’localhost’ to database ‘3306’ when selecting the database

root@debian:~# mysqldump -u*** -p*** xxx > /www/xxx.sql
root@debian:~#