Minor adjust in rename-all-files-to-md5sum.sh

scripts/shell/rename-all-files-to-md5sum.sh

@@ -6,5 +6,11 @@ for filename in "${files[@]}"; do
   filename_m5sum=$(md5sum "$filename" | awk '{print $1}')
   filename_extension="${filename##*.}"
 
-  mv "$filename" "$filename_m5sum.$filename_extension"
+  new_filename="$filename_m5sum.$filename_extension"
+
+  if [ "$filename" == "$new_filename" ]; then
+    continue
+  fi
+
+  mv "$filename" "$new_filename"
 done