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Subject: Re: [TUHS] PDP-7 UNIX filesystem
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On Fri, 25 Oct 2019, Arthur Krewat wrote:

> Which is where conv=sync,noerror comes in. Of course, I have no 
> freakin' idea what version of UNIX that came into being. ;)

Looks like dd was introduced in Fifth Edition (and had those conversion 
values).