How to overwrite existing files in batch?

问题

The following command copies and moves a file but I also need it to overwrite the file it's replacing.

xcopy /s c:\mmyinbox\test.doc C:\myoutbox

回答1:

Add /Y to the command line

回答2:

You can use :

copy /b/v/y

See SS64 on COPY.

回答3:

Add /y to the command line of xcopy:

Example:

xcopy /y c:\mmyinbox\test.doc C:\myoutbox

回答4:

you need to simply add /Y

xcopy /s c:\mmyinbox\test.doc C:\myoutbox /Y

and if you're using path with spaces, try this

xcopy /s "c:\mmyinbox\test.doc" "C:\myoutbox" /Y

回答5:

If the copy command is run from within a batch job you do not need to use the /Y switch: it will overwrite existing files.

回答6:

You can refer Windows command prompt help using following command : xcopy /?

回答7:

If destination file is read only use /y/r

xcopy /y/r source.txt dest.txt

回答8:

A command that would copy in any case

xcopy "path\source" "path\destination" /s/h/e/k/f/c/y

来源：https://stackoverflow.com/questions/4051294/how-to-overwrite-existing-files-in-batch