Nov 10, 2018

xcopy - copy tool on windows

xcopy is useful program that is included with Windows. Some of the things it can do include: copy directories recursively, copy just the folder structure, copy files changed on or after a given date, exclude files, only copy files that already exist in the destination, overwrite read only files, etc.

Here's an example of copying files recursively:
xcopy /E c:\source c:\dest
xcopy /E /D /y z:\ d:\Shares\voip-backup

You could encounter 

Insufficient memory

problem if path is too long. See 

How to delete a file/directory in Windows with path too long problem


or Robocopy may solve your problem:
robocopy  z:\ d:\Shares\voip-backup /S /E /COPYALL

You can get a full list of options by typing help xcopy
XCOPY source [dest] [/A | /M] [/D[:date]] [/P] [/S] 
                    [/E] [/V] [/W] [/C] [/I] [/Q] 
                    [/F] [/L] [/G] [/H] [/R] [/T] 
                    [/U] [/K] [/N] [/O] [/X] [/Y]
                    [/-Y] [/Z]
                    [/EXCLUDE:file1[+file2]...]

source  Specifies the file(s) to copy.
dest    Specifies the location and/or name of new files.

/A  Copies only files with the archive attribute set,
    doesn't change the attribute.
/M  Copies only files with the archive attribute set,
    turns off the archive attribute.
/D:m-d-y
    Copies files changed on or after the specified date.
    If no date is given, copies only those files whose
    source time is newer than the destination time.
/EXCLUDE:file1[+file2][+file3]...
    Specifies a list of files containing strings.  
    Each string should be in a separate line in
    the files.  When any of the strings match 
    any part of the absolute path of the file 
    to be copied, that file will be excluded
    from being copied.  For example, 
    specifying a string like \obj\ or .obj 
    will exclude all files underneath the 
    directory obj or all files with the .obj 
    extension respectively.
/P  Prompts you before creating each destination file.
/S  Copies directories and subdirectories except 
    empty ones.
/E  Copies directories and subdirectories, including 
    empty ones. Same as /S /E. May be used to modify /T.
/V  Verifies each new file.
/W  Prompts you to press a key before copying.
/C  Continues copying even if errors occur.
/I  If destination does not exist and copying more than 
    one file, assumes that destination must be a 
    directory.
/Q  Does not display file names while copying.
/F  Displays full source and destination file names 
    while copying.
/L  Displays files that would be copied.
/G  Allows the copying of encrypted files to destination 
    that does not support encryption.
/H  Copies hidden and system files also.
/R  Overwrites read-only files.
/T  Creates directory structure, but does not copy files.
    Does not include empty directories or subdirectories. 
    /T /E includes empty directories and subdirectories.
/U  Copies only files that already exist in destination.
/K  Copies attributes. Normal Xcopy will reset read-only
    attributes.
/N  Copies using the generated short names.
/O  Copies file ownership and ACL information.
/X  Copies file audit settings (implies /O).
/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.
/Z  Copies networked files in restartable mode.

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