backup: # mysqldump -u root -p[root_password] [database_name] > dumpfilename.sql

restore:# mysql -u root -p[root_password] [database_name] < dumpfilename.sql

Examples

mysqldump -u root -p[root_password] [database_name] > dumpfilename.sql
mysql -u root -ptmppassword sugarcrm < /tmp/sugarcrm.sql