Can't rename a file name

Question

I have a small bash script that download and rename files. The problem is with some gibberish not standard characters that bash can't understand.

for example:

�������� ���� ���'�-2.jpg

my bash

while read line; do
 if [ ! -z "$line" ]; then
  NEW_FILENAME=$(echo "$line" | uniconv -encode Russian-Translit |  uniconv -encode Latin | tr -d '\[\]\!\@\#\$\%\^\&\*\(\)\?\'')
  mv "$line" "$NEW_FILENAME"
 fi
done <<< "$FILES_TO_CONVERT"

Answer 1

why don't you delete those characters with something like :
sed 's/[^a-zA-Z0-9_\.-]//g'