This maximizes memory usage while limiting memory usage.

Sorry, I don't understand the above comment at all. Would you mind explaining that?

2. for f in tmp/chunk* ; do sort $f >$f.sorted ; done The sorting would actually be done before writing out the chunk.

 This cannot be guaranteed, what if the file is too big

In reply to Re^4: read and sort multiple files by matrixmadhan
in thread read and sort multiple files by newPerlr

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