To update the metadata for a set of photos, copy this command into the terminal in the destination directory. You will get a no input filenames error. Type it again and shell complete the set of input files. The output files will be written to your CWD plus the argument of the Directory option + the original filename.
exiftool \
-Make=Canon \
-Model="Canon EOS Rebel K2" \
-ImageDescription="Fujifilm 400 (135)" \
-ISO=400 \
-DateTimeOriginal="2024:08:01 12:00:00" \
-Copyright="FIXME" \
-Directory="CanonEOSRebelK2/2024-08-01/"