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Concept
Xcopy
Résumé
In computing, XCOPY is a command used on IBM PC DOS, MS-DOS, IBM OS/2, Microsoft Windows, FreeDOS, ReactOS, and related operating systems for copying multiple or entire directory trees from one 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 earlier operating systems. XCOPY first appeared in DOS 3.2.
While still included in Windows 10, XCOPY has been deprecated in favor of robocopy, a more powerful copy tool, which is now supplied with the Microsoft Windows Server and Desktop operating systems.
DR DOS 6.0 and Datalight ROM-DOS include an implementation of the command.
The FreeDOS version was developed by Rene Ableidinger and is licensed under the GPL.
J. Edmeades developed the Wine-compatible version that is included in ReactOS. It is licensed under the LGPL.
Since Windows Server 2019 and Windows 10, a compression option is available in xcopy when copying across a network. With this switch, if the destination computer supports SMB compression and the files being copied are very compressible, there may be significant improvements to performance. The SMB compression adds inline whitespace compression to file transfers. Compression is also available with the robocopy command and Hyper-V Live Migration with SMB.
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 pathnames include spaces, they must be enclosed 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.
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