robocopy syntax

Posted on 2014-01-22
Last Modified: 2014-01-24
Can someone help me write a robocopy statement that will copy any file named *f.jpg on the C:\ drive to the E:\ drive, not overwriting anything.
Question by:hrolsons
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
LVL 11

Expert Comment

ID: 39801718
robocopy *f.jpg c:\ e:\ /E

*Edit: Do you know if the files in the destination are newer or older?

Author Comment

ID: 39801747
The files in the destination should be newer.

Author Comment

ID: 39801758
I was reading here:

That I need to do 3 more switches.
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

LVL 54

Accepted Solution

Joe Winograd, EE MVE 2015&2016 earned 500 total points
ID: 39801760
robocopy c:\ e:\ *f.jpg /s /xc /xn /xo

The /s gets all non-empty subfolders (if you want empty ones, make that /e) and the /xc /xn /xo is a cutesy way not to overwrite. I've attached the full syntax of Robocopy so you can see why those three options result in no overwriting. Regards, Joe

Author Comment

ID: 39801798
So I'm still unclear if:

robocopy c:\ e:\ *f.jpg /e

is the same as:

robocopy c:\ e:\ *f.jpg /e /xc /xn /xo

Or is it just redundant?
LVL 54

Assisted Solution

by:Joe Winograd, EE MVE 2015&2016
Joe Winograd, EE MVE 2015&2016 earned 500 total points
ID: 39801806
No, it's not the same. The  /xc /xn /xo switches are effectively what implements no-overwrite. Without them, it will overwrite. Here's what those options mean:

/XC eXclude Changed files.

/XN eXclude Newer files.

/XO eXclude Older files.

So if you exclude changed, newer, and older files, it won't overwrite anything. It will copy only files that aren't already there, which I believe is what you asked for. Regards, Joe
LVL 54

Expert Comment

by:Joe Winograd, EE MVE 2015&2016
ID: 39801817
Actually, you could do just /xc. In other words, detecting a changed file means, by definition, that the same file exists in both the source and destination folders...otherwise, it wouldn't be changed! Run some experiments on small sets of files to see what happens.

Featured Post

NEW Veeam Agent for Microsoft Windows

Backup and recover physical and cloud-based servers and workstations, as well as endpoint devices that belong to remote users. Avoid downtime and data loss quickly and easily for Windows-based physical or public cloud-based workloads!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

When you try to share a printer , you may receive one of the following error messages. Error message when you use the Add Printer Wizard to share a printer: Windows could not share your printer. Operation could not be completed (Error 0x000006…
The Windows functions GetTickCount and timeGetTime retrieve the number of milliseconds since the system was started. However, the value is stored in a DWORD, which means that it wraps around to zero every 49.7 days. This article shows how to solve t…
This Micro Tutorial will teach you how to change your appearance and customize your Windows 7 interface to your unique preference. This will be demonstrated using Windows 7 operating system.
The viewer will learn how to successfully download and install the SARDU utility on Windows 7, without downloading adware.

707 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question