status=1
while [ $status -ne 0 ]; do
  s3cmd sync --server-side-encryption --no-delete-removed  --progress -v --exclude '*.DS_Store' \
     ~/Desktop/Uploads/Folder/  s3://my_bucket/Folder/
  status=$?
  if [ $status -ne 0 ]; then
    sleep 5 # Time for Ctrl+C
  fi
done