Question : Rename file with previous weekday's date as the file name

Experts,

having some trouble getting a concise answer on this:

I have a folder- C:/folder
with a file- sampledailyfile.txt

and another folder- C:/otherfolder

today's date is- 10/31/2006

I would like my batch (.bat) script to open "folder", take sampledailyfile.txt, rename it as 10302006.txt, and save it to "otherfolder"

if this occurs on a monday, the file name should use friday's date (e.g. on 10/30/2006 the file it finds should be named 10272006.txt

any ideas?

thanks~!!!

Answer : Rename file with previous weekday's date as the file name

:: rename a folder to a date that is today or few days ago
@echo off
setlocal
set D=%date%
set y=%D:~10,4%
set m=%D:~4,2%
set dw=%D:~0,3%
set d=%D:~7,2%
set folder=c:\folder\
set file=sampledailyfile.txt
if not "%dw%"=="Mon" echo ren %folder%%file% %y%%m%%d%&goto :eof

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But to subtract a few days from the date, I've applied the complex code from http://www.experts-exchange.com/Q_21994705.html  "Setting the Date in a Batch file - Is there a better way?", to make this demo: http://www.sendspace.com/file/e2fbc6 ToDate.bat