robocopy 是否总是为“/E”添加选项“/S”？答案

【问题标题】：Does robocopy always add the option "/S" for "/E"?robocopy 是否总是为“/E”添加选项“/S”？
【发布时间】：2019-02-09 00:59:26
【问题描述】：

当我这样做时

robocopy ./empty_folders ./empty_folders_dest /E

我看到以下选项：

Options : *.* /S /E /DCOPY:DA /COPY:DAT /R:1000000 /W:30

参数/S（不包括空目录）如何进入那里，被/E 逻辑排除（包括空目录）？倒数（逻辑上）不正确：当我做/S 时，我看不到/E。

更多细节：

wmic datafile where name="C:\\Windows\\System32\\robocopy.exe" get Version /value
Version=10.0.16299.15

ver
Microsoft Windows [Version 10.0.16299.125]

【问题讨论】：

这个问题已经包含在一个更大的未回答问题中：stackoverflow.com/questions/34984828/…
我猜文档可能是错误的：/S 只是复制非空子目录，而/E 暗示/S 和空子目录。
...文档在这里：technet.microsoft.com/en-us/library/cc733145(WS.10).aspx

标签： windows-10 robocopy

【解决方案1】：

您误解了文档。运行“robocopy /???”查看完整的内置帮助。

/S :: copy Subdirectories, but not empty ones.
/E :: copy subdirectories, including Empty ones.

换句话说，/S 将复制子目录 except 为空的。 /E 将复制子目录包括空目录。

【讨论】：

是的，有一个错误，我颠倒了/S和/E的解释。但是问题（虽然更容易理解）是：/E 暗示/S，为什么两者都有？这有点令人困惑......
@Liviu 您只需选择一个：/E 或 /S，具体取决于您是否要复制空子目录。

【解决方案2】：

我在使用 /MIR 开关时也遇到了同样的情况，但没有它，这两个开关不会自动添加。所以我认为这种情况可能与其他使用过的开关有关。

带有 /MIR 开关的 Robocopy：

C:\Windows\system32>ROBOCOPY F:\robocopytestv G:\robocopytestw /MIR

-------------------------------------------------------------------------------
   ROBOCOPY     ::     Robust File Copy for Windows
-------------------------------------------------------------------------------

  Started : Friday, February 8, 2019 19:40:01
   Source : F:\robocopytestv\
     Dest : G:\robocopytestw\

    Files : *.*

  Options : *.* /S /E /DCOPY:DA /COPY:DAT /PURGE /MIR /R:1000000 /W:30

------------------------------------------------------------------------------

                           6    F:\robocopytestv\
100%        New File                   0        New Bitmap Image.bmp
100%        New File              495616        New Microsoft Access Database.accdb
100%        New File                6171        New Microsoft Excel Worksheet.xlsx
100%        New File                   0        New Microsoft PowerPoint Presentation.pptx
100%        New File                   0        New Microsoft Word Document.docx
100%        New File                7942        New OpenDocument Drawing.odg
          New Dir          0    F:\robocopytestv\New folder\

------------------------------------------------------------------------------

               Total    Copied   Skipped  Mismatch    FAILED    Extras
    Dirs :         2         1         1         0         0         0
   Files :         6         6         0         0         0         0
   Bytes :   497.7 k   497.7 k         0         0         0         0
   Times :   0:00:00   0:00:00                       0:00:00   0:00:00


   Speed :            72818428 Bytes/sec.
   Speed :            4166.703 MegaBytes/min.
   Ended : Friday, February 8, 2019 19:40:01

不带 /MIR 开关的 Robocopy：

C:\Windows\system32>ROBOCOPY F:\robocopytestv G:\robocopytestw

-------------------------------------------------------------------------------
   ROBOCOPY     ::     Robust File Copy for Windows
-------------------------------------------------------------------------------

  Started : Friday, February 8, 2019 19:38:12
   Source : F:\robocopytestv\
     Dest : G:\robocopytestw\

    Files : *.*

  Options : *.* /DCOPY:DA /COPY:DAT /R:1000000 /W:30

------------------------------------------------------------------------------

                           6    F:\robocopytestv\
100%        New File                   0        New Bitmap Image.bmp
100%        New File              495616        New Microsoft Access Database.accdb
100%        New File                6171        New Microsoft Excel Worksheet.xlsx
100%        New File                   0        New Microsoft PowerPoint Presentation.pptx
100%        New File                   0        New Microsoft Word Document.docx
100%        New File                7942        New OpenDocument Drawing.odg

------------------------------------------------------------------------------

               Total    Copied   Skipped  Mismatch    FAILED    Extras
    Dirs :         1         0         1         0         0         0
   Files :         6         6         0         0         0         0
   Bytes :   497.7 k   497.7 k         0         0         0         0
   Times :   0:00:00   0:00:00                       0:00:00   0:00:00


   Speed :            84954833 Bytes/sec.
   Speed :            4861.154 MegaBytes/min.
   Ended : Friday, February 8, 2019 19:38:12

带有 /MIR 和 /S 开关的 Robocopy：

C:\Windows\system32>ROBOCOPY F:\robocopytestv G:\robocopytestw /S /MIR

-------------------------------------------------------------------------------
   ROBOCOPY     ::     Robust File Copy for Windows
-------------------------------------------------------------------------------

  Started : Friday, February 8, 2019 19:41:17
   Source : F:\robocopytestv\
     Dest : G:\robocopytestw\

    Files : *.*

  Options : *.* /S /E /DCOPY:DA /COPY:DAT /PURGE /MIR /R:1000000 /W:30

------------------------------------------------------------------------------

                           6    F:\robocopytestv\
100%        New File                   0        New Bitmap Image.bmp
100%        New File              495616        New Microsoft Access Database.accdb
100%        New File                6171        New Microsoft Excel Worksheet.xlsx
100%        New File                   0        New Microsoft PowerPoint Presentation.pptx
100%        New File                   0        New Microsoft Word Document.docx
100%        New File                7942        New OpenDocument Drawing.odg
          New Dir          0    F:\robocopytestv\New folder\

------------------------------------------------------------------------------

               Total    Copied   Skipped  Mismatch    FAILED    Extras
    Dirs :         2         1         1         0         0         0
   Files :         6         6         0         0         0         0
   Bytes :   497.7 k   497.7 k         0         0         0         0
   Times :   0:00:00   0:00:00                       0:00:00   0:00:00


   Speed :            12432414 Bytes/sec.
   Speed :             711.388 MegaBytes/min.
   Ended : Friday, February 8, 2019 19:41:18

带有 /MIR 和 /E 开关的 Robocopy：

C:\Windows\system32>ROBOCOPY F:\robocopytestv G:\robocopytestw /E /MIR

-------------------------------------------------------------------------------
   ROBOCOPY     ::     Robust File Copy for Windows
-------------------------------------------------------------------------------

  Started : Friday, February 8, 2019 19:42:35
   Source : F:\robocopytestv\
     Dest : G:\robocopytestw\

    Files : *.*

  Options : *.* /S /E /DCOPY:DA /COPY:DAT /PURGE /MIR /R:1000000 /W:30

------------------------------------------------------------------------------

                           6    F:\robocopytestv\
100%        New File                   0        New Bitmap Image.bmp
100%        New File              495616        New Microsoft Access Database.accdb
100%        New File                6171        New Microsoft Excel Worksheet.xlsx
100%        New File                   0        New Microsoft PowerPoint Presentation.pptx
100%        New File                   0        New Microsoft Word Document.docx
100%        New File                7942        New OpenDocument Drawing.odg
          New Dir          0    F:\robocopytestv\New folder\

------------------------------------------------------------------------------

               Total    Copied   Skipped  Mismatch    FAILED    Extras
    Dirs :         2         1         1         0         0         0
   Files :         6         6         0         0         0         0
   Bytes :   497.7 k   497.7 k         0         0         0         0
   Times :   0:00:00   0:00:00                       0:00:00   0:00:00


   Speed :            72818428 Bytes/sec.
   Speed :            4166.703 MegaBytes/min.
   Ended : Friday, February 8, 2019 19:42:35

【讨论】：

documentation 声明 /MIR 是 /E + /purge，因此将添加 /S，所以这里没有什么新内容（与最初的问题一致），但谢谢无论如何！