Using Robocopy with File Sizes and Ages

by Barry Dysert
(last updated December 11, 2017)

In another tip (Checking the Archive Attribute with Robocopy) we saw that we can have Robocopy perform operations based on file attributes. You can also affect its operation based on file sizes and ages.

For file sizes, you'd use the switches /MAX:n and /MIN:n, where "n" specifies the sizes of the files, in bytes, that are to be excluded from the copy. As an example, specifying /MAX:10000 tells Robocopy to exclude from copying any file that is larger than 10,000 bytes.

You can also alter what is copied based on the files' ages. The following command-line switches are used for this:

  • /MAXAGE:n - Excludes files older than n days (n can also be a date)
  • /MINAGE:n - Excludes files newer than n days (n can also be a date)
  • /MAXLAD:n - Excludes files unused since n date (LAD is an acronym for Last Accessed Date)
  • /MINLAD:n - Excludes files used since n date (LAD is an acronym for Last Accessed Date)

The only trick to using these options is in understanding what the "n" means. Depending upon its value, "n" can either represent days or a date. If "n" is less than 1900 then "n" is assumed to be a number of days, otherwise "n" is a date of this form: YYYYMMDD.

 This tip (13224) applies to Windows 7, 8, and 10.

Author Bio

Barry Dysert

Barry has been a computer professional for over 35 years, working in different positions such as technical team leader, project manager, and software developer. He is currently a software engineer with an emphasis on developing custom applications under Microsoft Windows. When not working with Windows or writing Tips, Barry is an amateur writer. His first non-fiction book is titled "A Chronological Commentary of Revelation." ...

MORE FROM BARRY

Increasing the Number of Restore Points

You may feel constrained by the low number of restore points your system is keeping. You can increase the disk space ...

Discover More

Creating a System Image

A system image is a snapshot of your system disk as of a certain point in time. Should the need arise, you can restore ...

Discover More

Using Resource Monitor

Maximizing your system's performance is an ongoing activity that requires in-depth knowledge of various components. ...

Discover More
More WindowsTips

Renaming Multiple Files

Got a bunch of files you need renamed? Windows can help you out, but only in a limited manner. This tip shows you how.

Discover More

Changing the Default Program for a File

Files are opened by programs depending upon the file's type. If you want to change this association so that a different ...

Discover More

Creating a System Repair Disk on a USB Flash Drive

Having a system repair disk is almost as important as doing regular backups. CDs and DVDs, though, tend to get scratched ...

Discover More
Subscribe

FREE SERVICE: Get tips like this every week in WindowsTips, a free productivity newsletter. Enter your address and click "Subscribe."

View most recent newsletter.

Comments

If you would like to add an image to your comment (not an avatar, but an image to help in making the point of your comment), include the characters [{fig}] in your comment text. You’ll be prompted to upload your image when you submit the comment. Maximum image size is 6Mpixels. Images larger than 600px wide or 1000px tall will be reduced. Up to three images may be included in a comment. All images are subject to review. Commenting privileges may be curtailed if inappropriate images are posted.

What is 5 + 3?

There are currently no comments for this tip. (Be the first to leave your comment—just use the simple form above!)


Newest Tips
Subscribe

FREE SERVICE: Get tips like this every week in WindowsTips, a free productivity newsletter. Enter your address and click "Subscribe."

(Your e-mail address is not shared with anyone, ever.)

View the most recent newsletter.