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Date: Mon, 10 Jul 2006 18:48:06 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Albert Cahalan <acahalan@gmail.com>
CC: Jan Engelhardt <jengelh@linux01.gwdg.de>, ray-gmail@madrabbit.org,
       Jon Smirl <jonsmirl@gmail.com>, Greg KH <greg@kroah.com>,
       alan@lxorguk.ukuu.org.uk, efault@gmx.de, linux-kernel@vger.kernel.org
Subject: Re: Opinions on removing /proc/tty?
References: <787b0d920607082230w676ddc62u57962f1fc08cf009@mail.gmail.com>	 <9e4733910607090704r68602194h3d2a1a91a4909984@mail.gmail.com>	 <787b0d920607090923p65c417f2v71c8e72bf786f995@mail.gmail.com>	 <2c0942db0607091000m259c1ed5m960821eb5237c4b0@mail.gmail.com>	 <787b0d920607091226sb1db56dg9c0267f6ae8e2dc7@mail.gmail.com>	 <20060709193133.GA32457@flint.arm.linux.org.uk>	 <787b0d920607091257u52198c55sb8973a39bff3fcc8@mail.gmail.com>	 <Pine.LNX.4.61.0607101601470.5071@yvahk01.tjqt.qr>	 <787b0d920607100806u613e7594nb6a7a1e2965e11a6@mail.gmail.com>	 <Pine.LNX.4.61.0607110015030.5420@yvahk01.tjqt.qr> <787b0d920607101807j2804023v17f7643bffeb2456@mail.gmail.com>
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Albert Cahalan wrote:
> 
> On any of Linux, MacOS, Solaris, NetBSD, OpenBSD:
> 
> $ ls /dev/tty /dev/ctty
> ls: /dev/ctty: No such file or directory
> /dev/tty
> 
> Lord only knows why FreeBSD has both.
> Unlike Linux, they don't supply a man page.
> On a Linux system, "man 4 tty" is useful.
> On a Solaris system, "man -s 7d tty" is useful.

On System V, /dev/ctty is the primary console device (meaning that 
unlike /dev/console, it cannot be redirected.)

	-hpa