exif-wipe-tag

#!/bin/bash

# Given a file, list of files, or directory, including images,
# Process them all by:
# wiping the named tag

# Invoke with
# exif-wipe-tag $TAG $SOURCE

function processFile1Arg {

    local exif_tag="$1"
    local source_file="$2"
    local exif_option="-quiet -overwrite_original"


    if [[ ! -f "${source_file}" ]]; then
        echo "$identifier Error: source file '$source_file' is not a file" >&2
        return 1
    fi

    local tag_value=$(exiftool -s -S -${exif_tag} "${source_file}")
    if [[ ! -z "$tag_value" ]]; then
      echo "Wiping ${exif_tag}:${tag_value} from ${source_file}"
      echo exiftool -${exif_tag}= "${source_file}"
      exiftool  ${exif_option} -${exif_tag}= "${source_file}"
    fi

    return 0
}

function processFiles1Arg {
    tag=$1
    shift
    for file in "$@"; do
        if [[ -d $file ]]; then
            # If the argument is a directory, process all files in the directory
            for f in "$file"/*; do
                processFile1Arg "$tag" "$f"
            done
        else
            # If the argument is a file, process the file
            processFile1Arg  "$tag" "$file"
        fi
    done
}

# Call the processFiles function with the provided arguments
# pop the first, pipe the rest.
tag=$1
shift
processFiles1Arg $tag "$@"