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Answer 1

+1 A:

/D

 /D:m-d-y     Copies files changed on or after the specified date.
              If no date is given, copies only those files whose
              source time is newer than the destination time.

Edit: What do you mean by new?

leppie 2010-08-17 05:15:02

sorry, what I wanted was name comparing option

Mark Attwood 2010-08-17 05:18:36

@markattwood: So you only want to copy the files if they do not exist in the target?

leppie 2010-08-17 05:22:04

Exactly. I have been trying FOR loop. But it's painful. It's simple but why MS doesn't support it.

Mark Attwood 2010-08-17 05:26:00

Yeah, that DOES sound tricky. I dont have an answer. Good luck :)

leppie 2010-08-17 05:28:39

@markattwood: Basically all you want is a 'never overwrite' option. :(

leppie 2010-08-17 05:29:38

It's not that easy. If I specified /Y option, the CMD would override all files. I'm stuck with a simple copy solution. It takes me 6 lines long with FOR commands for this simple scenario.

Mark Attwood 2010-08-17 05:36:22

Answer 2

A:

Perhaps you should look at rsync. It has a Win32 port and it can copy files based on a number of considerations including whether it exists or is different at the destination.

I think you want the switch:

--ignore-existing       skip updating files that exist on receiver

SpliFF 2010-08-17 05:27:35

Answer 3

+3 A:

Have a look at ROBOCOPY. Invoking it with the following switches will recursively copy the files from source_dir that do not yet exist in destination_dir:

robocopy source_dir destination_dir /s /xc /xn /xo

Als see the RoboCopy Manual for an explanation of the switches.

sakra 2010-08-17 07:38:33

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Copy new files only in batch

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