Re: [PLUG] Basic unix pipe question

[Morgan <morgan@morganjones.org>]

Ben,

Unless I am misunderstanding your question, this is just basic UNIX 
plumbing: the program being piped to will not even start I don't think 
until the first is finished.

-morgan




Ben Dugan wrote:
> I'm confused by what is probably normal behavior:
>
>
> [~]# program1 | program2
>
>
> I don't get any output (on stdout) from program2 until program1
> finishes. (I'm trying this out with simple C programs; program1 does a
> printf once every second, while program2 just watches stdin using fscanf
> and copies its stdin to stdout.)
>
> I've been googling and looking at some reference books I have, but I
> can't really figure out why this is. I can't coerce program2's output to
> happen sooner using flush, either.
>
> Any suggestions or explanations?
>
> Thanks in advance.
>
> Ben
>
>
>
>
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