Deleting GPS tags from images using exiv2

rm_gps_tags_exiv2.sh

# get the GPS keys from a random image
# we assume that all images have the same metadata fields,
# since they were obtained from the same device in similar conditions
export opts=$(exiv2 -p a IMG_2421.JPG | grep -i 'gps' | awk -F " " -v q='"' '{print "-M" q "del " $1 q}' |  tr '\n' ' ')

# delete the keys from the metadata
for f in `ls`; do eval "exiv2 $opts $f"; done

opts=$(exiv2 -Pk --grep gps/i BLAH.jpg | xargs -i echo -n  -M"del {}")
find . -xdev -type f -exec exiv2 "$opts" "{}" \;