Eric Anderson wrote:

-a is 'archive' mode, which is just a quick form of -PpR.
-l is 'link' mode, where regular files get hard linked instead of copied.

I agree with this, and while you're in there, can you add -s to copy sparse files (via the usual "if the buffer is all nulls, seek beyond eof instead of writing" trick)?

I recently had to copy big sparse files and dd with conv=sparse didn't work! I managed with rsync but I feel this functionality is the domain of 'cp' (yes, like it is in Linux - please don't start bikesheading on this detail).

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