A script for moving jpeg and video files that are located in a specified directory, but not present in the Shotwell database, to an archive directory.
You are free to use the script on your own risk. I recommend taking a backup before!
At the time of writing, pictures and movies (or, more specifically, files with the suffixes 'jpg', 'jpeg', 'mov' or 'mp4', or their capitalized equivalent) are moved from $HOME/Pictures/Shotwell to $HOME/Pictures/Shotwell_archive, if they cannot be found in of the tables PhotoTable or VideoTable in the Shotwell database. The directory structure under the source directory is kept.
If you want copy between other directories than the ones stated above, you may change the variables file_directory and archive_directory inside the script to the source and the target directory paths respectively.
The script is tested on Ubuntu 24.04.