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Copy only new files to external drive

980 Views 3 Replies 2 Participants Last post by  cwwozniak, 
niedernsill
Hallo
I am certain that 30 years ago you were able to copy only changed files or new files to an external drive, and leave ones that had already been archived uncopied.
Can you point me to the correct switch in DOS copy, Xcopy or Robocopy please.
I am sure that this is one of those stupid questions that are easy to answer
thanks again.
Michael
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cwwozniak
Here is a link on the Microsoft site that lists all of the switch options for XCOPY. The /a and/m switches control how to handle the archive bit of a file.

https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/xcopy
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niedernsill
Hallo.
Than you. I new it would be simple. I had seen the switches described, but the description was not really adequate for me to understand their use. I tried them both and the / m switch was neeeded and wors a treat.
thans again.
michael
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cwwozniak
You're welcome.
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