TechNote 5 – Splitting Large Files

I recently wanted to back up a large file (> 4GB) to DVD on my Mac. The solution:

split -b 2048m myLargeFile.dmg

This produces a bunch of 2GB files names xaa, xab, xac … etc

If I need to recreate the original file, copy all the files back to my Mac, then:

mv xaa recreated.dmg
cat xab >> recreated.dmg
cat xac >> recreated.dmg

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