Doing a Cron

Hi, I’m developing a WS that integrate Oracle Database to WordPress Database (MySQL), I have to include all the data through pure SQL, I have a rsync to syncronize the local images to the WordPress uploads folder and in that code I have to insert a pure image metadata and its not working, I have to run this plugin to fix that for me. I’m wondering if I can do a cron to run each 5 minute to fix that for me, someone can help me with it?