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From: stripes@eng.umd.edu (Joshua Osborne)
Newsgroups: comp.windows.x
Subject: Re: Setting up DISPLAY environment variable
Message-ID: <1990Jun30.060904.8241@eng.umd.edu>
Date: 30 Jun 90 06:09:04 GMT
References: <9173@uswat.UUCP>
Sender: news@eng.umd.edu (The News System)
Organization: College of Engineering, Maryversity of Uniland, College Park
Lines: 28

In article <9173@uswat.UUCP> bar@uswat.uswest.com (Bala Ramakrishnan 595-2868) writes:
>I run X11R4 on a sun 3/80. Also, I run some Xclients on a Sparc server by
>rlogin to the sparc machine. My home directories are mounted on both the
>Sun 3/80 and the sparc machine.
>
>My .cshrc file has : setenv DISPLAY localhost:0
Why not just set it once in .login?

[...]
>Is there a way (say by executing a program) to inquire the sparc machine
>where Iam rlogged from ,so that I can set the DISPLAY variable
>to the internet address of the machine from which I rlogged automatically.
From my .login:

set from=`who am i | cut -d\( -f2 | cut -d. -f1`
if (`tty` == /dev/console) then
		setenv DISPLAY `hostname`:0
else
		setenv DISPLAY "${from}":0
endif

This doesn't allways work.  It works for one hop & for a console login.
-- 
           stripes@eng.umd.edu          "Security for Unix is like
      Josh_Osborne@Real_World,The          Mutitasking for MS-DOS"
      "The dyslexic porgramer"                  - Kevin Lockwood
"Don't try to change C into some nice, safe, portable programming language
 with all sharp edges removed, pick another language."  - John Limpert