From owner-freebsd-questions@FreeBSD.ORG Wed Jun 6 14:31:23 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 673F016A41F for ; Wed, 6 Jun 2007 14:31:23 +0000 (UTC) (envelope-from freebsd@dfwlp.com) Received: from pollux.dfwlp.com (rrcs-64-183-212-244.sw.biz.rr.com [64.183.212.244]) by mx1.freebsd.org (Postfix) with ESMTP id 0E2A213C4BC for ; Wed, 6 Jun 2007 14:31:22 +0000 (UTC) (envelope-from freebsd@dfwlp.com) Received: from [192.168.125.134] ([192.168.125.134]) (authenticated bits=0) by pollux.dfwlp.com (8.13.8/8.13.8) with ESMTP id l56EVHVn011418; Wed, 6 Jun 2007 09:31:17 -0500 (CDT) (envelope-from freebsd@dfwlp.com) User-Agent: Microsoft-Entourage/11.3.3.061214 Date: Wed, 06 Jun 2007 09:31:16 -0500 From: Jonathan Horne To: Zhang Weiwu , User Questions Message-ID: Thread-Topic: not able to output anything to /dev/ttyv8? Thread-Index: AceoR1cNlcD29BQ6EdyM5AANk3sdtg== In-Reply-To: <1181139476.18606.81.camel@joe.realss.com> Mime-version: 1.0 Content-type: text/plain; charset="US-ASCII" Content-transfer-encoding: 7bit X-Spam-Status: No, score=-4.4 required=3.6 tests=ALL_TRUSTED,BAYES_00 autolearn=ham version=3.1.8 X-Spam-Checker-Version: SpamAssassin 3.1.8 (2007-02-13) on pollux.dfwlp.com Cc: Subject: Re: not able to output anything to /dev/ttyv8? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Jun 2007 14:31:23 -0000 On 6/6/07 9:17 AM, "Zhang Weiwu" wrote: > On Wed, 2007-06-06 at 03:14 -0400, Michael Hauber wrote: >> On Tuesday 05 June 2007 11:23:04 pm Zhang Weiwu wrote: >>> Dear list >>> >>> On Gentoo Linux I used to redirect the output of a certain app >>> to /dev/tty10 and switch to tty10 (by using Alt+F10) >>> >>> this is useful to keep watching the application. >>> >>> this doesn't work on FreeBSD. I can do >>> # ehco hello > /dev/ttyv8 >>> # ehco hello > /dev/ttyv9 >>> # ehco hello > /dev/ttyva >>> >>> But Alt+F9, Alt+F10, Alt+F11 only cause the machine to beep >>> >>> Possible to use /dev/ttyv9 for output device in FreeBSD? Thanks in >>> advance. >>> >>> Best regards >> >> try 'man ttys' and edit your /etc/ttys. > > It doesn't make me nervous when I have to RTFM as I did many times and, > now I am RTFMing, but, I got a feeling I am entering a "maze" filled > with things I don't know: termcap, bound rate... > > Anyway this is how I did it after RTFM, stupid but works: > 1) go to /etc/gettytab and add this: > > W|Wd|Wd console:\ > :ht:np:al=root:sp#9600: > > 2) run /usr/libexec/getty Wd ttyv8 > > 3) now you can run your application and redirect to ttyv8 > > # app > /dev/ttyv8 > > This is ugly, but it works. I'd very like to see better solutions. > > If you don't add that line to /etc/gettytab, run > > /usr/libexec/getty Pc ttyv8 > > will get you a ttyv8 console that you can redirect output to, but that > console seems ignore carrier return / line feed, making the output > difficult to read. > > P.S. I'd very much like the console ttyv8 can be at a speed of 9600, now > it output anything almost instantly, so sometimes I cannot watch the > output scroll with my eyes (by the special nature of the application I > am running, glance over the output of my application when I am free can > help me find a lot of useful information). The application produce less > then 20MB of data, so 9600 kbps is a good measure to control the pace of > output. > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" Im not sure what your application may be, but my simple solution is just to 'tail -f /path/logfile'. This way, I can see the output of my application from anywhere I am via ssh (not just the local tty). -- Jonathan Horne freebsd@dfwlp.com http://dfwlpiki.dfwlp.org