exiftool: add DateOriginal to filenames (Canon CR2 and JPG) recursively in current directory (synology)

exiftool-recursive-filename-date.sh

#!/bin/bash

printf "Adding date to filenames (Canon CR2 and JPG) in current directory recursively\n\n"

CWD=$(pwd)
DATE=`date '+%Y-%m-%d %H:%M:%S'`
DATELOG=`date '+%Y-%m-%d_%H%M%S'`
SECONDS=0
printf "Started at:     ${DATE}\n\n" | tee ${DATELOG}-photos_exiftool_filerename.txt && exiftool -ext JPG -ext CR2 -if '$make eq "Canon"' '-testname<${DateTimeOriginal}-${filename;$_=subst($_,4);}' -d "IMG_%Y%m%d_%H%M%S%%-c" -i "@eaDir" -P -overwrite_original_in_place -v -r "${CWD}" 2>&1 | tee -a ${DATELOG}-photos_exiftool_filerename.txt
DATEEND=`date '+%Y-%m-%d %H:%M:%S'`
printf "\nEnded at:     ${DATEEND}\n\n" | tee -a ${DATELOG}-photos_exiftool_filerename.txt
duration=$SECONDS
printf "Duration:       $(($duration / 60)) minutes and $(($duration % 60)) seconds\n\n" | tee -a ${DATELOG}-photos_exiftool_filerename.txt