Script: Replace spaces in IPTC Headline tag of RAW Images with underscore

FixHeadline.sh

#!/bin/bash

cd "$PWD"

if [ -z "$1" ]; then
    read -e -p "Image Extension: " EXTENSION
else
    EXTENSION="$1"
fi

BACKUP_FOLDER=ORIGINALS_$(date +%Y%m%d-%H%M%S)
mkdir "$BACKUP_FOLDER"

for image in *.${EXTENSION}; do
    name=`exiftool -s3 -iptc:Headline $image`
    new_name=${name// /_}
    if [ "$name" != "$new_name" ]; then
        exiftool -iptc:Headline="$new_name" "$image"
        original_file="${image}_original"
        if [ -f "$original_file" ]; then
            mv -vn "$original_file" "$BACKUP_FOLDER"
        fi
        echo "[$image]"
        echo "$(exiftool -iptc:Headline "$image")"
        echo ""
    fi
done

if [ -z "$(ls -A $BACKUP_FOLDER)" ]; then
    rmdir "$BACKUP_FOLDER"
fi

RestoreBackup.sh

#!/bin/bash

cd "$PWD"

if [ -z "$1" ]; then
    read -e -p "Backup Folder: " TARGET_FOLDER
else
    TARGET_FOLDER="$1"
fi

BACKUP_FOLDER=$(echo $TARGET_FOLDER | sed 's:/*$::')
cd "$BACKUP_FOLDER"

for image in *.*_original; do
    new_name=${image/_original/}
    mv -v "$image" "../$new_name"
    echo "[$new_name] Headline: $(exiftool -s3 -iptc:Headline "../$new_name")"
    echo ""
done

cd ..
if [ -z "$(ls -A $BACKUP_FOLDER)" ]; then
    rmdir "$BACKUP_FOLDER"
fi