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- DOCUMENT:Q103040 04-NOV-1993 [W_NT]
- TITLE :PRB: Renaming Files While Copying May Cause Corruption
- PRODUCT :Windows NT
- PROD/VER:3.10
- OPER/SYS:WINDOWS
- KEYWORDS:
-
- ----------------------------------------------------------------------
- The information in this article applies to:
-
- - Microsoft Windows NT operating system, version 3.1
- - Microsoft Windows NT Advanced Server, version 3.1
- ----------------------------------------------------------------------
-
- SYMPTOMS
- ========
-
- With the Windows NT command prompt, if you use the Copy command to
- copy a file from one directory to another, you cannot rename the file
- simultaneously if you are using wildcards in the command line.
-
- For example, if you have one file called TEST.EXE in a directory
- called ATEST, and you want to rename the file to BINARY.EXE while
- copying it, the file will be corrupted if you use the following
- command line:
-
- copy c:\atest\*.exe c:\binary.exe
-
- The file will be partially copied, but will truncate at the first
- instance of CTRL-Z (EOF) in the file, causing a corrupted file.
-
- RESOLUTION
- ==========
-
- To workaround this problem, use a /b switch in front of the source
- file. This will correctly complete the copy and rename operation. For
- example:
-
- copy /b c:\atest\*.exe c:\binary.exe
-
- Do not place the /b after the destination file. If you use a /b after
- the destination file as in the following example, the destination file
- will be corrupted:
-
- copy c:\atest\*.exe c:\binary.exe /b
-
- Also, using the following command is the best way to copy and rename a
- file:
-
- copy c:\atest\test.exe c:\binary.exe
-
- STATUS
- ======
-
- Microsoft has confirmed this to be a problem in Windows NT version 3.1
- and Windows NT Advanced Server version 3.1. We are researching this
- problem and will post new information here in the Microsoft Knowledge
- Base as it becomes available.
-
- Additional reference words: 3.10 cmd
- KBCategory:
- KBSubcategory: ntap filsys
-
- =============================================================================
-
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- PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS
- ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO
- EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
- ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
- CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
- MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
- POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION
- OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
- SO THE FOREGOING LIMITATION MAY NOT APPLY.
-
- Copyright Microsoft Corporation 1993.