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Transferring large data files with confidence
28 May 2021
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Craig Windell, a QCIF eResearch Analyst at QUT, outlines how to transfer large data files with confidence.
Transferring large data files? Want to have confidence they arrive matching the source file? Have a look at md5sum.
md5sum creates a hash file. A hash file can be considered a digital fingerprint of the file. How does md5sum help? Firstly, you create a hash, or digital fingerprint of the file with a command, such as: Send both to your preferred service, say Cloudstor. At the other end, after download, use md5sum again to check the file matches the hash: The command will print OK if they match. If they don’t match, you can try a download again, or another upload. md5sum is most likely available on your Linux or Mac computer, and easy to install on Windows.
This article was first published on 18/12/2019.
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