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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.os.linux.misc
Subject: Re: The joy of pipes
Date: Tue, 19 Nov 2024 21:55:14 -0000 (UTC)
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On Tue, 19 Nov 2024 09:57:47 +0000, Pancho wrote:

> That has a knock on effect that I don't really
> understand the behaviour of programs which do use pipes. I'm presuming
> bash commands uses pipes.

As should be apparent by now, pipes are more than a substitute for 
temporary files, they are an IPC/synchronization mechanism.

Consider this C program <https://gitlab.com/ldo/slow_dbus_server>, and see 
how a pipe is used to send a termination notification from a worker thread 
back to the main thread.