./batchUpdateExifGeo.sh /path/to/directory latitude longitude elevation latRef longRef

batchUpdateExifGeo.sh

#!/bin/zsh

# Check if ExifTool is installed
if ! command -v exiftool &> /dev/null; then
    echo "Error: ExifTool is not installed. Please install it before running this script."
    echo "You can install it using Homebrew: brew install exiftool"
    exit 1
fi

# Check if the user provided a directory and GPS coordinates as arguments
if [ "$#" -lt 7 ]; then
    echo "Error: Insufficient arguments. Please provide a directory and GPS coordinates."
    echo "Usage: $0 <directory> <new_latitude> <new_longitude> <new_altitude> <latitude_ref> <longitude_ref>"
    exit 1
fi

# Set the directory and GPS variables from the user's input
directory="$1"
new_latitude="$2"
new_longitude="$3"
new_altitude="$4"
latitude_ref="$5"
longitude_ref="$6"

# Check if the provided directory exists
if [ ! -d "$directory" ]; then
    echo "Error: The specified directory '$directory' does not exist."
    exit 1
fi

# Count of processed files
file_count=0

# Move to the specified directory
cd "$directory" || exit

# Iterate through all JPEG files in the directory
for file in *.jpg; do
    echo "Processing $file"
    
    # Print existing GPS information
    echo "Existing GPS Information:"
    exiftool -gpslatitude -gpslongitude -gpsaltitude -gps:GPSLatitudeRef -gps:GPSLongitudeRef "$file"
    
    # Update GPS information in JPEG file
    exiftool -gpslatitude="$new_latitude" -gpslongitude="$new_longitude" -gpsaltitude="$new_altitude" -gps:GPSLatitudeRef="$latitude_ref" -gps:GPSLongitudeRef="$longitude_ref" "$file"
    
    # Update or create XMP sidecar file
    exiftool -gpslatitude="$new_latitude" -gpslongitude="$new_longitude" -gpsaltitude="$new_altitude" -gps:GPSLatitudeRef="$latitude_ref" -gps:GPSLongitudeRef="$longitude_ref" -o "$file.xmp" -overwrite_original "$file"
    
    # Print new GPS information
    echo "Updated GPS Information:"
    exiftool -gpslatitude -gpslongitude -gpsaltitude -gps:GPSLatitudeRef -gps:GPSLongitudeRef "$file"
    
    echo "-------------------------"
    
    # Increment the file count
    ((file_count++))
done

# Print the total number of processed files
echo "Total number of files processed: $file_count"

Quick and dirty script to help me update the geolocation of some photos.

./batchUpdateExifGeo.sh /path/to/directory latitude longitude elevation latRef longRef