Command Line to add formats from directory to calibredb

Hi all,

I'm not very proficient working with command line, but was able to batch convert my entire Calibre library of EPUBs to kepub format using kepubify in the terminal on Mac OS.

I KNOW this is not what many of you would advise since I shouldn't be mucking around underneath the file structure of Calibre. But it's done now.

Is there a way to batch update the database so Calibre recognizes the additional formats of the existing books? I know I can do it one by one in the GUI but I'm hoping there's a more elegant way to do it by batch in the terminal.

Thank you!