questions about named pipe objects...

waltbrad waltbrad at hotmail.com
Mon Mar 17 19:18:02 CET 2008


On Mar 17, 1:59 pm, Jeff Schwab <j... at schwabcenter.com> wrote:
>
> A Unix fifo is only nominally a file.  It's really just a convenient way
> of referring to an in-memory object.
>      mkfifo f
>      some_prog > f &
>      cat f
>
> Is semantically equivalent to:
>
>      some_prog | cat
>
> If you want to peruse the data in your editor, use a regular file, not a
> fifo.  Have the writer (producer, "child" in your example) open it in
> append mode.

Okay. I get it. That's interesting. Wish Lutz explained that. Thanks.



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