Find and rename files with no extension?

Question

So, I\'ve got a bunch of files with no extension. I want to write a windows batch script that will:

1. Find files with no extension (in a specified folder)

Answer 1

Here's another possible command for renaming files with no extensions recursively (assuming that file paths don't contain spaces):

for /f %i in ('dir *. /b /s /a-d') do rename "%~fi" "%~ni.bla"

Batch version (with doubled %):

@echo off
for /f %%i in ('dir *. /b /s /a-d') do (
   rename "%%~fi" "%%~ni.bla"
)

If file or folder names contain spaces, use this command instead:

for /f "tokens=* delims= " %i in ('dir *. /b /s /a-d') do rename "%~fi" "%~ni.bla"

Batch version:

@echo off
for /f "tokens=* delims= " %%i in ('dir *. /b /s /a-d') do (
   rename "%%~fi" "%%~ni.bla"
)

---

Edit: here's even shorter one-liner that supports spaces in paths:

for /r %i in (*.) do ren "%~fi" "%~ni.bla"

Batch version:

@for /r %%i in (*.) do ren "%%~fi" "%%~ni.bla"