sort images by names via modifying timestamp for google photos

google_photo_sort_by_name.sh

# after running the script, use google photos their built-in timestamp based sorting function

i=0
find ./ -name "*.jpg" | sort | while read filename; do
    i=$((i+1))

    time=`date --date="-${i} seconds" '+%Y:%m:%d-%T'`
    #echo $time

    jhead -mkexif $filename
    jhead -ts$time $filename 
    jhead -ta-128:00 $filename # add extra hour offset if necessary

    # following won't work
    #time=`echo "${time//:/}"`
    #time=${time:0:12}
    #touch -t $time "$filename"
done