How do I delete files that DO NOT have the "A" (archive) attribute set via a batch/script?

This should be pretty easy (or so I think).  How can I (via a batch file) delete all files that do NOT have the A (archive) attribute set (including subdirectories)?

Long story short, once our backup files are shipped to tape, the A attribute is cleared by the backup software.  However these (really big) files are not removed.  I want to run a script each night that cleans up files that have already been shipped (and thus do NOT have the A attribute set).

Thanks!
Dominic
corpkidAsked:
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sirbountyCommented:
Why don't we just change the whole thing to this... : )
Remove the 'echo' (and pause) from the line below if it's displaying the files you want to remove...

@echo off
setlocal enabledelayedexpansion
for /r c:\testing %%a in (*.txt) do call :process %%~aa %%~dpnxsa
goto :eof

:process
set strA=%1
set strFile=%2
if /i %strA:~2,1%==a goto :eof
echo del %strFile%
pause
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sirbountyCommented:
Build your list with this command...

dir *.* /s /a-a >> C:\Deletionlist.txt

Then perform the delete using

for /f %%a in (C:\DeletionList.txt) do erase %%a
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corpkidAuthor Commented:
Hey Sirbounty - thanks for the help.  That got me close, but the output file (deletionlist.txt) is formated like such:

03/18/2007  11:08 PM             7,644       DATA_BACKUP4_log_200703182100.txt

As such, the 2nd part of the script barks the following errors:

c:\erase 03/18/2007
Invalid switch - "18"

I don't know how to change the output...

Thanks again! :)

Dominic
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SteveGTRCommented:
I'd recommend using Sirbounty's suggest with the inclusion of the /b dir switch:

dir *.* /b /s /a-a > C:\Deletionlist.txt

for /f %%a in (C:\DeletionList.txt) do erase "%%a"
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corpkidAuthor Commented:
You are a genius! :)

That worked great!  THANK YOU!
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sirbountyCommented:
That's true - Steve's (the REAL genius) verion might be a better, and less code, method...
Glad it worked for you though.
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SteveGTRCommented:
Sirbounty's idea and he came up with the solution. Great work :)
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