If you're going to hand off the work to dd, you might want to use split, as it can act on full lines (so won't break in the middle of a record, given the logic the OP was using.).

You also don't need to recursively call it, as the equivalent to your dd example would be:

split -b 30720m -a 3 $INFILE

In reply to Re^2: processing huge files by jhourcle
in thread processing huge files by geektron

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