如何在DOS状态下，把电脑桌面上的所有文件复制拷贝到另外一个文件夹中？

Copies one or more files to another location.

COPY [/A | /B] source [/A | /B] [+ source [/A | /B] [+ ...]] [destination] [/A | /B]] [/V] [/Y | /-Y]

source Specifies the file or files to be copied.
/A Indicates an ASCII text file.
/B Indicates a binary file.
destination Specifies the directory and/or filename for the new file(s).
/V Verifies that new files are written correctly.
/Y Suppresses prompting to confirm you want to overwrite an existing destination file.
/-Y Causes prompting to confirm you want to overwrite an existing destination file.

The switch /Y may be preset in the COPYCMD environment variable. This may be overridden with /-Y on the command line.

To append files, specify a single file for destination, but multiple files for source (using wildcards or file1+file2+file3 format).

Examples
The below example would copy all files in the current directory to the floppy disk in drive a:

copy *.* a:

Copy the autoexec.bat, usually found at root, and copy it into the windows directory; the autoexec.bat can be substituted for any file(s).

copy autoexec.bat c:\windows

Copy the win.ini file, which is already in your windows directory, to the windows directory, without prompting if you wanted to overwrite the file or not.

copy win.ini c:\windows /y

Copy the contents in myfile2.txt and combine it with the contents in myfile1.txt.

copy myfile1.txt+myfile2.txt

Finally, a user can create a file using the copy command. In the below example we create the file called "test.txt".

copy con test.txt

Once the above command has been typed in, a user could type in whatever he or she wishes. When you have completed creating the file, you can save and exit the file by pressing CTRL+Z, which would create ^Z, and then press enter. An easier way to view and edit files in MS-DOS would be to use the edit command.

在XP命令提示符下输入HELP可看见上文中文翻译

copy c:*.* d:\windows