                            REPLACE				[new DOS 3.3]

The REPLACE external command is used to selectively replace files
on a backup disk that have been modified since being backed up.

REPLACE 
    [d1:][pathname1]filename1[.ext1] [d2:][pathname2] [/A][/P][/R][/S][/W] 
                                            	     [/U]	[new DOS 4.0]
     \____________________________/   \____________/
	         \source/	        \destination

[d1:][pathname1]filename1[.ext1] is the source of the files that
    will be checked for modification.

[d2:][pathname2][filename2[.ext2]] is the destination pathname where
    files will be replaced. 

/A causes a file to be copied to the destination if the source file 
    does not exist on the destination. Cannot be used with /S.

/P causes REPLACE to ask before replacing or copying each file.

/R allows read-only files on the destination to be replaced. 

/S causes a source file to replace files with that name in every
    subdirectory on the destination. Source subdirectories are not
    searched.

/W causes REPLACE to wait for any key to be pressed before beginning
    to look for files to replace.

/U restricts REPLACE to only replace files on the destination that are
    older than the matching files on the source. [new DOS 4.0]
