Powershell equivalent to copy the Xcopy only updated files that exist in target

问题

In windows batch I would do

xcopy source_spec target_spec /d/u/r/y

/d : more recent
/u : only those that exist in target
/r : ignore the read only flag
/y : don't prompt for overwrite

What's the simplest using the powershell copy-item/copy cmdlet equivalent.

And to the wags - yes I know I can do xcopy in powershell :-)

so in powershell I do:

cmd /c xcopy source_spec target_spec /d/u/r/y

回答1:

No there is no straightforward equivalent without writing few lines of script. Use xcopy or robocopy.

来源：https://stackoverflow.com/questions/7371918/powershell-equivalent-to-copy-the-xcopy-only-updated-files-that-exist-in-target