EXIF dates minus one hour and preserve original modify date (tested on MacOSX only)

exif_minus_one_hour.sh

#!/bin/bash
FILE_LIST=$(find . -type f -iname "*.jpg" -o -iname "*.jpeg" -o -iname "*.raw" -o -iname "*.arw" | sort)

if [[ "${#FILE_LIST[@]}" == 0 ]]; then
  echo "No files of found with type: (*.jpg|*.jpeg|*.raw|*.arw)"
  exit 1
fi

for f in $FILE_LIST; do
  echo "PROCESSING $f"
  ORIGIN_DATE=$(stat -f %SB -t %Y-%m-%dT%H:%M:%S $f)
  exiftool -AllDates-="0:0:0 1:0:0" $f
  touch -d "$ORIGIN_DATE" $f
done