[TUHS] PDP-7 UNIX file systam
doug at cs.dartmouth.edu
Wed Oct 23 12:22:10 AEST 2019
> As noted in the jargon file, the dd(1) syntax is deliberately reminiscent
> of the DD statement in IBM JCL. This was presumably a joke
That is certainly true and reflects its major early usage to
prepare tapes to carry to other systems.
Though I haven't use dit in ages, I recall that the joke was
so fully engtained that the command was more likely to be
written "dd ifile=x ofile=y" than "dd <x >y"
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