create cron/script to backup MySQL DB.

I am looking for a coder to create a simple cron/script that will run anytime I need to backup any number of different mysql databases that I have; Everytime the cron runs, then it will create a new sql backup file in any directory that I choose ie: Lets say cron is setup to run every 15 min... [login to view URL] Database Name: Social Media db1: [login to view URL] 10:00 db2: [login to view URL] 10:15 db3: [login to view URL] 10:30 db4: [login to view URL] 10:45 db5: [login to view URL] 11:00 DataBase Name: Forum db1: vb.sql.gz.1 10:00 db2: vb.sql.gz.2 10:15 db3: vb.sql.gz.3 10:30 db4: vb.sql.gz.4 10:45 db5: vb.sql.gz.5 11:00 I will handle directory security. I just need the cron to create the db's assigned, and save them to any directory that I choose. I need to be able to save any number of db's. I need to be able to set run time; ie: 15m, 30m, 60m, etc...