一段BAT脚本

@echo off
set dirList = d:\20150728  
for /f "delims=" %%i in ('dir /a:d /o:n /b "%dirList%"')  do  ( 
      if exist d:\20150728\%%i\avc_command.etext copy d:\20150728\%%i\avc_command.etext d:\20150728\avc_command_%%i.etext
   )
   
pause