Move Metadata on Ricoh Theta S 360 Videos with exiftool

#!/bin/bash
FILES=*_er.MP4
for f in $FILES
do
  echo "Processing $f file..."
  origFile=$(echo $f | sed 's/_er//g')
  exiftool -tagsFromFile $origFile $f
  exiftool '-FileModifyDate<TrackCreateDate' $f
  chflags nohidden $f
done