The Unix Heritage Society mailing list
 help / color / Atom feed
* Re: [TUHS] PDP-7 UNIX file systam
@ 2019-10-23  2:22 Doug McIlroy
  0 siblings, 0 replies; only message in thread
From: Doug McIlroy @ 2019-10-23  2:22 UTC (permalink / raw)
  To: tuhs

> 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"


^ permalink raw reply	[flat|nested] only message in thread

only message in thread, back to index

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-10-23  2:22 [TUHS] PDP-7 UNIX file systam Doug McIlroy

The Unix Heritage Society mailing list

Archives are clonable: git clone --mirror

Example config snippet for mirrors

Newsgroup available over NNTP:

AGPL code for this site: git clone