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Deleting GPS tags from images using exiv2
# 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
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