Replace one file with another (both having the same filename).

      REPLACE [Drive:][path]SourceFiles [Drive:][path2] [/A] [/P] [/R] [/W]
REPLACE [Drive:][path]SourceFiles [Drive:][path2] [/S] [/P] [/R] [/W] [/U]
Key path/files : The source file(s), wildcards accepted.
path2 : The destination folder. If no destination is specified REPLACE will use the current drive and directory as the destination. /A : Add any missing files.
/P : Prompt for confirmation (each file)
/R : Replace even Read-only files
/S : Include all subfolders of the destination.
/W : Wait/pause (originally to allow inserting a floppy disk.)
/U : Update only files that are older than the source.

When replacing in all subdirectories (/S ) the files in the source are matched against every subfolder, this is not a mirror, the files in each folder are matched separately.
The (/S ) subdirectories option cannot be combined with Add files (/A) or Restrict to Updating older (/U).

REPLACE will list all the files that are replaced. By default, only files that already exist in the destination will be replaced.

You cannot use REPLACE to update any file which has a hidden or system attribute set, see the ATTRIB command for more.

REPLACE will set %ERRORLEVEL% as follows:

0 0 or more files were replaced.
3 Source or destination not found.
5 Access denied.
11 Invalid switch.

The path to the destination folder must NOT include a trailing backslash.


Update the files in C:\delivery\ with the .exe files in C:\source files\

C:\> replace "C:\source files\*.exe" C:\delivery

Update the report.doc file in all the folders beneath C:\reports :

C:\> replace "C:\demo\report.doc" C:\reports /s
Replacing C:\reports\Jan\report.doc
Replacing C:\reports\Feb\report.doc
Replacing C:\reports\Mar\report.doc

"That's the secret to life... replace one worry with another" ~ Charles M. Schulz


ROBOCOPY - Robust File and Folder Copy
MOVE - Move files from one folder to another folder on the same drive
DEL - Delete one or more files
COPY - Copy one or more files to another location
Equivalent bash command (Linux): install - Copy files and set attributes

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