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Number   :  3650
Date     :  2003-02-05
Author   :  Garry Deane
Subject  :  Re: copying files after certain dates
Size(KB) :  1


--- In xxcopy@yahoogroups.com, "dayvah49 " 
 wrote:
> Garry - I may not have been very clear in my description! The 
> switch /fa selected files *OLDER* (not newer) than /da:2003-1-1
> which seems contrary to what Kan described for the action of
> these two switches together. With /da:2003-1-1 alone (7) files
> were copied.
> With /fa added along with /da:2003-1-1 (62) files were copied with 
> many of those files *OLDER* than the original (7). I'm wondering
> if it's a bug in v.2.82.8? Or possibly I've misunderstood the 
> /fa switch. I have followed Kan's very interesting statements 
> in recent months about filetime issues in different O.S.
> environments and I think I have a rudimentary understanding
> of the issue.

Maybe I'm not understanding you but when you say the /FA selected 
files are older than the /DA selected files, what date are you 
comparing with 2003-1-1? If you are looking at the file dates using 
explorer, the dates shown are the MODIFIED dates.

The /DA:2003-1-1 /FA switch selects files which have been ACCESSED 
since 2003-1-1. It doesn't matter that the file modify dates are 
older than that, it matters when they were last accessed.

For example, I have 3 files which have modified dates of 01/01/2003.

d:\temp>dir /od/n *.txt
01/01/03 05:33p 192 file1.txt
01/01/03 05:34p 216 file2.txt
01/01/03 05:34p 216 file3.txt

However the last accessed dates (dd/mm/yy) are as follows:

D:\temp>dir /od/ta/n *.txt
27/01/03 12:00a 216 file2.txt
27/01/03 12:00a 216 file3.txt
05/02/03 12:00a 192 file1.txt

xxcopy *.txt f:\test /da:2003-01-02 /L
selects no files at all because the modified dates are all older than 
2003-01-02.

xxcopy *.txt f:\test /da:2003-01-02 /fa /L
selects all 3 files because the accessed dates are all more recent 
than 2003-01-02.

xxcopy *.txt f:\test /da:2003-02-01 /fa /L
selects only file1.txt because it is the only one accessed after 2003-
02-01.

Garry



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