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Number   :  3344
Date     :  2002-12-17
Author   :  dayvah49
Subject  :  Re: The /RX operation --- a major bug!!!
Size(KB) :  2


Kan,

If I understand correctly, you're saying no other switches modify 
the /RX action? If so then it seems at the very least you'd have to 
provide extra documentation with caveats about what /RX does and 
doesn't do. Though, if I were a user of /RX (I'm not) I would not 
want you to get rid of it! Some of us have obscure switches we find 
very useful.

dayvah49

--- Kan Yabumoto wrote:

----snip----

> More importantly, the /RS/BB combination offers a
> substantially more versatility. If you closely examine
> how XXCOPY approaches a given file-management operation,
> you find that the "target" directory and its files will
> be put into the "center stage" by specifying in the
> source specifier. *ALL* of the file-qualifier switches
> such as /DA, /DB, /SZ:, /ATxx, etc. are effective on
> only the source specifier, not the destination specifier.
> This alone makes the comparison between /RX and /RS/BB
> tip its scale in favor of the /RS/BB combination.
> 
> The only justification for the existence of the /RX
> switch seems to be that it can be used to remove things
> from the directory which is normally regarded as the
> "destination" in a typical backup operation. But,
> swapping the source and the destination specifier
> for a few specialized operations like /RX (and other
> non-copy operations) should not conceptually a very
> difficult thing to understand. Moreover, a user may
> be puzzled by adding a few /H, /R, /SZ: and other
> switches which have no effect in de-selecting certain
> class of files when /RX is used. This behavior is
> indeed a pitfall to practically *ALL* users who might
> try the /RX operation. Currently, the /RX operation
> just like the /Z operation acts on the extra files in
> the destination whose counterpart is not present in
> the source directory without any other consideration.
> That is, the absence of the counterpart in the
> corresponding source directory is the sole mechanism
> for deleting a file with the /RX (and /Z) operation.
> 



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