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From: gwyn@smoke.BRL.MIL (Doug Gwyn)
Newsgroups: comp.unix.wizards
Subject: Re: Which is more portable:  stty <   or  stty >
Message-ID: <12339@smoke.BRL.MIL>
Date: 13 Mar 90 03:10:39 GMT
References: <3354@muffin.cme.nist.gov>
Reply-To: gwyn@brl.arpa (Doug Gwyn)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 12

In article <3354@muffin.cme.nist.gov> libes@cme.nist.gov (Don Libes) writes:
>The native SunOS stty(1)  acts on the device that is the current stdout
>while their System V stty acts on the device that is the current stdin.
>In the interest of portability, which is preferable?

The former is the 7th Ed. UNIX and 4BSD behavior.
System V assumes you may want to redirect the output somewhere other
than the terminal being probed.

Your shell scripts could attempt "stty < /dev/tty > /dev/tty" just to
make sure they see the terminal no matter where stdin and stdout point.
(Don't use "stty <> /dev/tty", since most shells don't support <> properly.)