[PLUG] Basic unix pipe question

[Ben Dugan <bdugan@curdes.com>]

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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