REPLACE [drive1:][path1]filename [drive2:][path2] [/A] [/P] [/R] [/W]
REPLACE [drive1:][path1]filename [drive2:][path2] [/P] [/R] [/S] [/W] [/U]

[drive1:][path1]filename

Specifies the source file or files.

[drive2:][path2]

Specifies the directory where files are to be replaced.

/A

Adds new files to destination directory. Cannot use with /S or /U switches.

/P

Prompts for confirmation before replacing a file or adding a source file.

/R

Replaces read-only files as well as unprotected files.

/S

Replaces files in all subdirectories of the destination directory. Cannot use with the /A switch.

/W

Waits for you to insert a disk before beginning.

/U

Replaces (updates) only files that are older than source files. Cannot use with the /A switch.