Create listing of new files (that don't already exist) from a list of files

1-find-new-files.sh

#!/bin/bash

while read f; do
  # i think this regex doesn't make a lot of sense in this context - won't fix now
  if [[ -z $(find . -name "$(echo $f | sed 's/\..*$//')*") ]]; then
    echo $f >> new-files.txt
  fi
done < files.txt

2-copy-new-files.sh

#!/bin/bash

while read f; do cp $f new-files/; done < new-files.txt