mysql

[root@localhost tsmis3003-sp1-huerhaote-20120928]# mysqldump -u root test>test_db_bak_20120929.sql

[root@localhost tsmis3003-sp1-huerhaote-20120928]# ll test_db_bak_20120929.sql 

-rw-r--r-- 1 root root 52244 2012-09-29 10:20 test_db_bak_20120929.sql

[root@localhost tsmis3003-sp1-huerhaote-20120928]# mysql -u root test<test_db_bak_20120929.sql