As Guelphdad mentioned, you can use the mysqldump command, here is an example:
mysqldump --opt --host=localhost --user=myUser --password=myPass --result-file=C:\Backups\myBackupFile.sql myDatabase
in this case "myDatabase" will be your database name "malibu_udnerconstruction"
Also, if you are new to mysql there are many tools that can help you with the backup process. Take a look at
MySQLBackupFTP ,the interface is very friendly and the tool has good features like file compression, ftp, and mail notifications.