Copy custom xmp metadata to xmp description

[paul0704]

Hi,

I'm completely new to ExifTool. I got lots of images with a custom xmp tag looking like that:

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StudioLine:Description="Description goes here"

I want to copy that tag into the default description tag for xmp

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<dc:description>
            <rdf:Alt>
               <rdf:li xml:lang="x-default">Description goes here</rdf:li>
            </rdf:Alt>
         </dc:description>

without manually having to do so.
Is that possible with ExifTool and if yes, could you help me with that?

Thank you very much!

Paul

[StarGeek]

Run this command on the file to see the actual location of your Studio Description (FAQ #3)
exiftool -G1 -a -s -Description file.jpg

You'll see something like this
[XMP-dc]        Description                     : Description goes here

Take the part in the braces on the left and replace GROUP in the command below with that value
exiftool "-Description<GROUP:Description" /path/to/files/

[paul0704]

Wow, thank you very much! That worked perfectly 

[StarGeek]

What was the group name that exiftool displayed?  I don't think I've seen StudioLine tag before.

[paul0704]

It is [XMP-StudioLine]. We used https://www.studioline.net/EN/ for photo organisation but are looking forward to moving to other applications.