Date a photo using EXIF timestamp.

date_photo.sh

for img in *.JPG ; do
   fn=$(basename ${img} .JPG);
   convert ${fn}.JPG ${fn}.exif;
   tstamp=$(strings ${fn}.exif | grep -E "^[0-9]{3}.*\:.*" | head -1 | sed 's/:/\//' | sed 's/:/\//');
   [[ -n "${tstamp}" ]] && tdate=$(date -d "${tstamp}" +"%d %b %Y %H:%M") || tdate="";
   if [[ -n "${tdate}" ]] ; then
      touch -d "${tdate}" ${fn}.JPG;
      status="Touched"
   else
      status="";
   fi
   echo "${fn}.JPG ${tstamp} ${tdate} ${status}";
   rm -f ${fn}.exif;
done