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Is the directory structure the same? eg. are the three drives a backup of the same general drive with the same general folder structure?
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Is the directory structure the same? eg. are the three drives a backup of the same general drive with the same general folder structure?

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<div class="content wysiwyg-content">
I have three hard drives full of backups, and I want to merge them into one, bigger hard drive. However, these three drives have many of the same files, yet with different time stamps.<br />
<br />
How can I move only the newest files to the new drive, and exclude the old duplicates?<br />
<br />
* rsync?<br />
* an automator script?<br />
* other?
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I have three hard drives full of backups, and I want to merge them into one, bigger hard drive. However, these three drives have many of the same files, yet with different time stamps.

How can I move only the newest files to the new drive, and exclude the old duplicates?

* rsync?
* an automator script?
* other?

Merge multiple hard drive backups to one drive on OSX?

Mac OS X is the desktop operating system from Apple Inc., found on Macintosh computers. OS X consists of a Mach/BSD-based kernel, operating system interfaces primarily based on FreeBSD and additional frameworks (written in C, C++ and Objective-C providing user interface and application-level services.

Mac OS X

Apple's early computers ran on a variety of operating systems, including a Pascal version and one based on CP/M, before releasing its ProDOS with the advent of its 16-bit computer. With the release of the Lisa, which had its own OS, Apple and computing entered the graphical age; it was followed by the Macintosh, which offered a series of "System" operating systems. Other Mac operating systems included PowerPC until Apple acquired NeXT and folded it into the Mac OS. Current operating systems for Apple devices are Mac OS-X and iOS.

Apple OS

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.