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|Developer(s)||Microsoft, Rene Ableidinger, ReactOS Contributors|
|Initial release||1986, 31–32 years ago|
|Operating system||DOS, OS/2, Microsoft Windows, ReactOS|
In computing, XCOPY is a command used on IBM PC DOS, MS-DOS, FreeDOS, OS/2, Microsoft Windows, ReactOS, and related operating systems for copying multiple files or entire directory trees from one directory to another and for copying files across a network. XCOPY stands for extended copy, and was created as a more functional file copying utility than the copy command found in these operating systems. XCOPY first appeared in DOS 3.2.
Create a new directory by copying all contents of the existing directory, including any files or subdirectories having the "hidden" or "system" attributes and empty directories.
xcopy e:\existing e:\newcopy /e /i /h
If the directory names include blank signs (spaces), the names can be put in quotation marks.
xcopy "D:\Documents and Settings\MY.USERNAME\My Documents\*" "E:\MYBACKUP\My Documents\" /D/E/C/Y
Copy entire drive in to a mapped network drive while ignoring any errors in network restartable mode.
xcopy *.* z:\Netmirror /E /V /C /F /H /Y /Z 1>out.txt 2>err.txt
Copy a single file without prompt if it is a file or a directory
cmd /c echo F | xcopy "c:\directory 1\myfile" "c:\directory 2\myfile"
Xcopy fails with an "insufficient memory" error when the path plus filename is longer than 254 characters and moving large files without the "/j" option (available only after Server 2008R2) can consume all available RAM on a system.
No open files
Xcopy will not copy open files. Any process may open files for exclusive read access by withholding the FILE_SHARE_READ https://msdn.microsoft.com/en-us/library/aa363858.aspx
The Windows Volume Shadow Copy service is used for such situations, but Xcopy does not use it. Therefore, Xcopy is not useful for backing up live operating system volumes.
- "Windows NT File System Files". Microsoft Help and Support. Microsoft. 2006-11-01.
- Pietrek, Matt (2007-01-16). "Robocopy built into Vista". Under The Hood (an MSDN blog).
- Maciak, Luke (2007-02-05). "Xcopy: Insufficient Memory".
- "Technet: Xcopy". 2014-03-07.
- Switches That You Can Use with Xcopy and Xcopy32 Commands, Windows 95, Windows 98, Windows Me
- Xcopy, Microsoft Windows XP
- Microsoft TechNet Xcopy article
- VariableGHz article depicting CRC errors and XCOPY as a solution
- XCOPY Command in a post build event does not execute
- XP_CMDSHELL Does Not Work with XCOPY
- See also Microsoft Product Documentation
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