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Copy with Verify?

 
 
Talal Itani
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      4th May 2007

Under DOS, xcopy has a verify switch. When I copy in XP, is there a verify
option? Thanks.

T.I.


 
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Terry
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      4th May 2007
On 5/4/2007 11:37 AM On a whim, Talal Itani pounded out on the keyboard

> Under DOS, xcopy has a verify switch. When I copy in XP, is there a verify
> option? Thanks.
>
> T.I.
>
>


Hi Talal,

Yes, by using xcopy in a command prompt window. ;-)

By default the CMD shell has verify OFF
Windows Explorer will always copy with verify ON


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Terry

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Wesley Vogel
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      4th May 2007
/v Verifies each file as it is written to the destination file to make sure
that the destination files are identical to the source files.

Xcopy HELP
Paste the following line into Start | Run and click OK...

hh ntcmds.chm::/xcopy.htm

Also type: xcopy /? in a command prompt.

--
Hope this helps. Let us know.

Wes
MS-MVP Windows Shell/User

In news3L_h.29$iY3.1@trnddc08,
Talal Itani <(E-Mail Removed)> hunted and pecked:
> Under DOS, xcopy has a verify switch. When I copy in XP, is there a
> verify option? Thanks.
>
> T.I.


 
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Talal Itani
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Posts: n/a
 
      4th May 2007

"Wesley Vogel" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> /v Verifies each file as it is written to the destination file to make
> sure that the destination files are identical to the source files.
>
> Xcopy HELP
> Paste the following line into Start | Run and click OK...
>
> hh ntcmds.chm::/xcopy.htm
>
> Also type: xcopy /? in a command prompt.
>
> --
> Hope this helps. Let us know.
>
> Wes
> MS-MVP Windows Shell/User
>
> In news3L_h.29$iY3.1@trnddc08,
> Talal Itani <(E-Mail Removed)> hunted and pecked:
>> Under DOS, xcopy has a verify switch. When I copy in XP, is there a
>> verify option? Thanks.
>>
>> T.I.

>


I means to ask, when I use Windows Explorer to copy, is verify implemented?


 
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Terry
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Posts: n/a
 
      4th May 2007
On 5/4/2007 3:05 PM On a whim, Talal Itani pounded out on the keyboard

> "Wesley Vogel" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
>> /v Verifies each file as it is written to the destination file to make
>> sure that the destination files are identical to the source files.
>>
>> Xcopy HELP
>> Paste the following line into Start | Run and click OK...
>>
>> hh ntcmds.chm::/xcopy.htm
>>
>> Also type: xcopy /? in a command prompt.
>>
>> --
>> Hope this helps. Let us know.
>>
>> Wes
>> MS-MVP Windows Shell/User
>>
>> In news3L_h.29$iY3.1@trnddc08,
>> Talal Itani <(E-Mail Removed)> hunted and pecked:
>>> Under DOS, xcopy has a verify switch. When I copy in XP, is there a
>>> verify option? Thanks.
>>>
>>> T.I.

>
> I means to ask, when I use Windows Explorer to copy, is verify implemented?
>
>


I believe I answered you. Yes.

--
Terry

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Delete NOSPAM from the email address after clicking Reply.
 
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=?Utf-8?B?cm1hY2U=?=
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Posts: n/a
 
      20th May 2007
I was under the impression that "verify" just checks that the new file is
readable, not that it actually matches the source.
--
Bob


"Talal Itani" wrote:

>
> Under DOS, xcopy has a verify switch. When I copy in XP, is there a verify
> option? Thanks.
>
> T.I.
>
>
>

 
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Wesley Vogel
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Posts: n/a
 
      20th May 2007
> I was under the impression that "verify" just checks that the new file is
> readable, not that it actually matches the source.


Then you had the wrong impression.

/v Verifies each file as it is written to the destination file to make sure
that the destination files are identical to the source files.

Xcopy HELP
Paste the following line into Start | Run and click OK...

hh ntcmds.chm::/xcopy.htm

Also type: xcopy /? in a command prompt.

--
Hope this helps. Let us know.

Wes
MS-MVP Windows Shell/User

In news:54DA5387-5A90-4C4D-BC8C-(E-Mail Removed),
rmace <(E-Mail Removed)> hunted and pecked:
> I was under the impression that "verify" just checks that the new file is
> readable, not that it actually matches the source.
> --
> Bob
>
>
> "Talal Itani" wrote:
>
>>
>> Under DOS, xcopy has a verify switch. When I copy in XP, is there a
>> verify option? Thanks.
>>
>> T.I.


 
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=?Utf-8?B?cm1hY2U=?=
Guest
Posts: n/a
 
      21st May 2007
Ok; but what about the info from microsoft?
Does the following only apply to the old real versions of DOS and not to the
current DOS emulators on Windows XP? From:
http://support.microsoft.com/kb/126457

"VERIFY ON, COPY /V, XCOPY /V Commands Do Not Compare Data
Article ID : 126457, Last Review : May 6, 2003, Revision : 2.0
Some versions of the MS-DOS "User's Guide" and online Help indicate that the
/V (verify) switch for the COPY and XCOPY commands actually compares the
source and destination files to determine whether they are identical. This is
not correct. The /V switch verifies that the destination file, once written,
can be read. No comparison of the files occurs.
This information also applies to the VERIFY ON command.
When you use the VERIFY ON command, or the /V switch with the COPY or XCOPY
command, the MS-DOS file system uses the block device driver command code
function 09H, Write with Verify. This verification process consists of
confirming that the data just written can be read (for example, that the data
was not written to a bad sector on the disk). No comparison of the source and
destination data occurs.
To compare the source and destination files, use the MS-DOS FC (file
compare) command after you use the COPY or XCOPY command.
REFERENCES
For more information about the VERIFY, COPY, XCOPY, or FC command, see your
MS-DOS "User's Guide," or use the online Help in MS-DOS versions 5.0 and
later."

I honestly do not know. I am asking, not telling.
--
Bob


"Wesley Vogel" wrote:

> > I was under the impression that "verify" just checks that the new file is
> > readable, not that it actually matches the source.

>
> Then you had the wrong impression.
>
> /v Verifies each file as it is written to the destination file to make sure
> that the destination files are identical to the source files.
>
> Xcopy HELP
> Paste the following line into Start | Run and click OK...
>
> hh ntcmds.chm::/xcopy.htm
>
> Also type: xcopy /? in a command prompt.
>
> --
> Hope this helps. Let us know.
>
> Wes
> MS-MVP Windows Shell/User
>
> In news:54DA5387-5A90-4C4D-BC8C-(E-Mail Removed),
> rmace <(E-Mail Removed)> hunted and pecked:
> > I was under the impression that "verify" just checks that the new file is
> > readable, not that it actually matches the source.
> > --
> > Bob
> >
> >
> > "Talal Itani" wrote:
> >
> >>
> >> Under DOS, xcopy has a verify switch. When I copy in XP, is there a
> >> verify option? Thanks.
> >>
> >> T.I.

>
>

 
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Poprivet
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Posts: n/a
 
      21st May 2007
rmace wrote:
> Ok; but what about the info from microsoft?
> Does the following only apply to the old real versions of DOS and not
> to the current DOS emulators on Windows XP? From:
> http://support.microsoft.com/kb/126457


Your information (KB) is correct. I don't know what XP's version of copy
and xcopy do but that's true of the old DOS operating sytems up thru win98.
I hesitate to correct Wesley because he's seldom wrong about anything,
but it's still my impression that they operate that same way under XP, but
.... I only base that conclusion on the length of time it takes to copy or
copy/verify. An actual full data verification will take about the same
length of time to accomplish as the copy operation itself. Empirical and
admittedly very rudimentary tests I just tried seem to tell me that there is
NO data verification as far as comparing the destination data to the source.
Copying a 40 Meg file results in almost no noticeable change in copy time
with or without the data verification switch.

So perhaps what I should be doing is aking Wesley: Please comment/clarify
the information because I know the KB article is correct for the old DOS
versions. My experience doesn't seem to bear out those comments Wesley made
however.
Perhaps the confusion is between using the Command Prompt to issue actual
copy/xcopy commands vs. the Windows method of copy? Or ... ?

Pop`




>
> "VERIFY ON, COPY /V, XCOPY /V Commands Do Not Compare Data
> Article ID : 126457, Last Review : May 6, 2003, Revision : 2.0
> Some versions of the MS-DOS "User's Guide" and online Help indicate
> that the /V (verify) switch for the COPY and XCOPY commands actually
> compares the source and destination files to determine whether they
> are identical. This is not correct. The /V switch verifies that the
> destination file, once written, can be read. No comparison of the
> files occurs.
> This information also applies to the VERIFY ON command.
> When you use the VERIFY ON command, or the /V switch with the COPY or
> XCOPY command, the MS-DOS file system uses the block device driver
> command code function 09H, Write with Verify. This verification
> process consists of confirming that the data just written can be read
> (for example, that the data was not written to a bad sector on the
> disk). No comparison of the source and destination data occurs.
> To compare the source and destination files, use the MS-DOS FC (file
> compare) command after you use the COPY or XCOPY command.
> REFERENCES
> For more information about the VERIFY, COPY, XCOPY, or FC command,
> see your MS-DOS "User's Guide," or use the online Help in MS-DOS
> versions 5.0 and later."
>
> I honestly do not know. I am asking, not telling.
>
>>> I was under the impression that "verify" just checks that the new
>>> file is readable, not that it actually matches the source.

>>
>> Then you had the wrong impression.
>>
>> /v Verifies each file as it is written to the destination file to
>> make sure that the destination files are identical to the source
>> files.
>>
>> Xcopy HELP
>> Paste the following line into Start | Run and click OK...
>>
>> hh ntcmds.chm::/xcopy.htm
>>
>> Also type: xcopy /? in a command prompt.
>>
>> --
>> Hope this helps. Let us know.
>>
>> Wes
>> MS-MVP Windows Shell/User
>>
>> In news:54DA5387-5A90-4C4D-BC8C-(E-Mail Removed),
>> rmace <(E-Mail Removed)> hunted and pecked:
>>> I was under the impression that "verify" just checks that the new
>>> file is readable, not that it actually matches the source.
>>> --
>>> Bob
>>>
>>>
>>> "Talal Itani" wrote:
>>>
>>>>
>>>> Under DOS, xcopy has a verify switch. When I copy in XP, is there
>>>> a verify option? Thanks.
>>>>
>>>> T.I.




 
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Wesley Vogel
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Posts: n/a
 
      21st May 2007
XP's Xcopy.exe and DOS Xcopy.exe are similar, but they are not the exact
same. For one thing, DOS Xcopy does not recognize the /g switch (Creates
decrypted destination files). Which if you think about it, you can only
encrypt files and folders on an NTFS file system. MS-DOS won't even install
on NTFS.

What I copied and pasted was from XP's Command-line reference
%windir%\hh.exe ms-its:c:\Windows\Help\ntcmds.chm::/ntcmds.htm

This link is the same as what's in XP's Command-line reference...
http://www.microsoft.com/resources/d....mspx?mfr=true

http://support.microsoft.com/kb/126457 APPLIES TO
* Microsoft MS-DOS 3.1
* Microsoft MS-DOS 3.2 Standard Edition
* Microsoft MS-DOS 3.21 Standard Edition
* Microsoft MS-DOS 3.3 Standard Edition
* Microsoft MS-DOS 3.3a
* Microsoft MS-DOS 4.0 Standard Edition
* Microsoft MS-DOS 4.01 Standard Edition
* Microsoft MS-DOS 5.0 Standard Edition
* Microsoft MS-DOS 5.0a
* Microsoft MS-DOS 6.0 Standard Edition
* Microsoft MS-DOS 6.2 Standard Edition
* Microsoft MS-DOS 6.21 Standard Edition
* Microsoft MS-DOS 6.22 Standard Edition

--
Hope this helps. Let us know.

Wes
MS-MVP Windows Shell/User

In news:57B395B0-8259-49DE-A9AB-(E-Mail Removed),
rmace <(E-Mail Removed)> hunted and pecked:
> Ok; but what about the info from microsoft?
> Does the following only apply to the old real versions of DOS and not to
> the current DOS emulators on Windows XP? From:
> http://support.microsoft.com/kb/126457
>
> "VERIFY ON, COPY /V, XCOPY /V Commands Do Not Compare Data
> Article ID : 126457, Last Review : May 6, 2003, Revision : 2.0
> Some versions of the MS-DOS "User's Guide" and online Help indicate that
> the /V (verify) switch for the COPY and XCOPY commands actually compares
> the source and destination files to determine whether they are identical.
> This is not correct. The /V switch verifies that the destination file,
> once written, can be read. No comparison of the files occurs.
> This information also applies to the VERIFY ON command.
> When you use the VERIFY ON command, or the /V switch with the COPY or
> XCOPY command, the MS-DOS file system uses the block device driver
> command code function 09H, Write with Verify. This verification process
> consists of confirming that the data just written can be read (for
> example, that the data was not written to a bad sector on the disk). No
> comparison of the source and destination data occurs.
> To compare the source and destination files, use the MS-DOS FC (file
> compare) command after you use the COPY or XCOPY command.
> REFERENCES
> For more information about the VERIFY, COPY, XCOPY, or FC command, see
> your MS-DOS "User's Guide," or use the online Help in MS-DOS versions 5.0
> and later."
>
> I honestly do not know. I am asking, not telling.
> --
> Bob
>
>
> "Wesley Vogel" wrote:
>
>>> I was under the impression that "verify" just checks that the new file
>>> is readable, not that it actually matches the source.

>>
>> Then you had the wrong impression.
>>
>> /v Verifies each file as it is written to the destination file to make
>> sure that the destination files are identical to the source files.
>>
>> Xcopy HELP
>> Paste the following line into Start | Run and click OK...
>>
>> hh ntcmds.chm::/xcopy.htm
>>
>> Also type: xcopy /? in a command prompt.
>>
>> --
>> Hope this helps. Let us know.
>>
>> Wes
>> MS-MVP Windows Shell/User
>>
>> In news:54DA5387-5A90-4C4D-BC8C-(E-Mail Removed),
>> rmace <(E-Mail Removed)> hunted and pecked:
>>> I was under the impression that "verify" just checks that the new file
>>> is readable, not that it actually matches the source.
>>> --
>>> Bob
>>>
>>>
>>> "Talal Itani" wrote:
>>>
>>>>
>>>> Under DOS, xcopy has a verify switch. When I copy in XP, is there a
>>>> verify option? Thanks.
>>>>
>>>> T.I.


 
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