Batch file that compare prefix : im really lost now.. 

--( FOLDER )

   RAW_123432542_343.text
   231453254_213.text
   RAW_324324_32432423.text
   32432423_4543.text


that is a sample files inside the folder

what i want is.. to raname all the files that doesn't have RAW_   prefix
the folder have thousand of file inside
   
