Write specified tags into .xmp file with name of existing raw file

[richo]

Is it possible to only write specified tags into .xmp file which names i basedon existing raw file in the folder?
I tried

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exiftool -GPSLatitude=46.9652522N -GPSLongitude=8.4770156E -o %d%f.xmp  2020-10-24-00000?.raf

but it copied all tags from the raf files

[StarGeek]

See the Metadata Sidecar Files page.

It would basically be example #13 but replace the -TagsFromFile @ with the tags you want to set
exiftool -GPSLatitude=46.9652522N -GPSLongitude=8.4770156E -srcfile %d%f.xmp /path/to/files/

[Phil Harvey]

exiftool -GPSLatitude=46.9652522N -GPSLongitude=8.4770156E -srcfile %d%f.xmp /path/to/files/

You may want to exclude XMP files from this command in case some already existed.  ie)

exiftool -GPSLatitude=46.9652522N -GPSLongitude=8.4770156E -srcfile %d%f.xmp --ext xmp /path/to/files/

[richo]

Thank you both for your kind help, this works very well.

[richo]

Please excuse me if I am annoying, but I really love power of this tool now for many years and every time I learn something there is new idea popping out.
Now you showed me how to write only specified tags to xmp named after a raw file. Now I have folder where are some images for whos I have gps track file and few of them I do not have. I know where those not in gps track file where created and I have GPS coordinate of the place.

Is it possible to create xmp file with those coordinates, but only for those RAW files which do not have already xmp file?
Thank you.

[Phil Harvey]

I would have to say that this is possible, but I don't understand exactly what you want so I can't give an example.  Something like this perhaps?:

exiftool -GPSLatitude=46.9652522N -GPSLongitude=8.4770156E -o %d%f.xmp --ext xmp /path/to/files/

You will get errors for all the XMP files that already exist.

- Phil

[richo]

I don't understand exactly what you want so I can't give an example.

I first run -geotag using my tracking.gps file on and creates sidecar xmp for all raw file. Some of them will be not covered by tracking.gps because i did not have my tracking turned on. those will not have xmp file created. I will manually locate GPS coordinates (based on picture i will remember when was it and use online maps to find coordinates).
For those I like to run command similar to what you wrote. It is often that multiple photos are shot on same location so I like to run (based on your last example something like this:

exiftool -GPSLatitude=46.9652522N -GPSLongitude=8.4770156E -o %d%f.xmp --ext xmp 2020-10-25-0023?.raf

which should take all raw files ending with 30...39. for example, it may be the case that *30 *31 already have xmp files, those I do not want to change.

[Phil Harvey]

That command should do it then.