Command Line Update/Scan Command?

That's not possible at the moment.

The scan is triggered by the call of an URL (when using the web admin), so technically you might think about using a command line tool like curl to call it. The problem is that launching a scan is an administrator action, so you have to be identified, which means providing a cookie with the token generated by the server when you logged in. Quite complex and not realistically usable as the token has to be preiodically regenerated.

Is there a specific reason you need command line triggered scan ? Usually setting the autoscan period to the minimum (15 min) does the job, as the scanning process is really inexpensive (as long as no new file has been added).

I agree the minimum is normally fine. I was working on trying to update my books with meta tags and checking to see if the metadata was showing up in Ubooquity when clicking on a book. At the time, I didn't think about running the Admin page from the remote pc I was on. I'm an old batch file guy and I was like, boy I wish I could just make a script to force an update as soon as I need it without remoting in and doing it. I could've just opened the admin page and clicked update as much as I needed. DOH! Thanks for the answer though!