if ! checkInt "$siz_cand"; then continue; fi; # reject
if [[ "$((siz + siz_cand))" -gt "$siz_dest" ]]; then continue; fi; # reject
if [[ "$siz_cand" -lt "$min_file_size" ]]; then continue; fi; # reject
if ! checkInt "$siz_cand"; then continue; fi; # reject
if [[ "$((siz + siz_cand))" -gt "$siz_dest" ]]; then continue; fi; # reject
if [[ "$siz_cand" -lt "$min_file_size" ]]; then continue; fi; # reject