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But BSD was a rewrite too. I don't know what the mix of Unix versions in common use was 30 years ago, but I assume AT&T's original was up there. That's the vers

by mark-r 9y ago

But BSD was a rewrite too. I don't know what the mix of Unix versions in common use was 30 years ago, but I assume AT&T's original was up there. That's the version I started with around that time period. I was actually assuming that most people today were running Linux, but I forgot that Macs use pieces of BSD.

int_19h 9y ago
As far as I know, BSD never did a complete rewrite touching every single line of code. They rewrote the code that was inherited, or derived from, AT&T Unix. Which was most of it, but not everything.