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From: Mike Meyer <mwm@mired.org>
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Date: Thu, 14 Sep 2000 19:29:08 -0500 (CDT)
To: Zhiui Zhang <zzhang@cs.binghamton.edu>
Cc: questions@freebsd.org
Subject: Re: write to terminal in a background process
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Zhiui Zhang writes:
> I thought a background process can not write to terminal. It will get a
> signal if trying to do so. But someone presents me a small program:

No, it *may* not be able to write to the terminal, depending on the
terminals modes. See "man stty", particularly the "tostop" option.

> #include
> main()
> {
> 	printf("printing\n");
> }
> 
> $ a.out &
> 
> and it does print. Can anyone explain this to me?  Thanks.

Try
$ stty tostop
$ a.out &

and see what it does (or maybe it's "stty -tostop").

	<mike


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