Date: Tue, 22 Dec 1998 14:09:06 +1100 From: "John Saunders" <john.saunders@scitec.com.au> To: "Michael Ryan" <mike@NetworX.ie>, "Jonathan Chen" <jonc@pinnacle.co.nz> Cc: "FreeBSD Support" <questions@FreeBSD.ORG> Subject: RE: Mystery with pipe(), fork() and dup() Message-ID: <003f01be2d58$6fc9f130$6cb611cb@saruman.scitec.com.au> In-Reply-To: <ECS9812220153E@NetworX.ie>
next in thread | previous in thread | raw e-mail | index | archive | help
> I know. In the context of my program
> if (pid == 0)
> means the child process will execute the code, whereas
> if (pid)
> means the parent process will execute the code.
In the context of your program, (pid == 0) means that the
output of grep is piped into more. But for (pid) it means
that the output of more is piped into grep. A certain
recipe for screwing up the output of more.
Cheers.
-- . +-------------------------------------------------------+
,--_|\ | John Saunders mailto:John.Saunders@scitec.com.au |
/ Oz \ | SCITEC LIMITED Phone +61294289563 Fax +61294289933 |
\_,--\_/ | "By the time you make ends meet, they move the ends." |
v +-------------------------------------------------------+
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?003f01be2d58$6fc9f130$6cb611cb>