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Path: utzoo!utgpu!water!watmath!clyde!rutgers!seismo!ll-xn!ames!sdcsvax!allyn
From: allyn@sdcsvax.UUCP
Newsgroups: comp.sys.att
Subject: Re: 7300/3B1 user agent IS optional
Message-ID: <3385@sdcsvax.UCSD.EDU>
Date: Mon, 29-Jun-87 01:53:07 EDT
Article-I.D.: sdcsvax.3385
Posted: Mon Jun 29 01:53:07 1987
Date-Received: Tue, 30-Jun-87 02:12:31 EDT
References: <482@maxepr.UUCP>
Organization: U.C. San Diego
Lines: 35

In article <482@maxepr.UUCP>, ken@maxepr.UUCP (Ken Brassler) writes:
> In my humble opinion, the interface to windows and user agent IS
> optional. All you have to do is edit your .profile and remove the
> line that says 'exec /usr/bin/ua', and you will remain in the shell
> specified in /etc/passwd. This can be /bin/sh or /bin/ksh (and even
> /bin/csh is floating around).
> 
> Several people have set up .profile to look at $TERM to decide whether
> to exec UA for a given login. Remote non-graphics terminals and
> dialups get /bin/sh as an interface.

system v login has the nifty feature that extra words on the login line
(after your login name) are put into the environment.  extra words having 
the form name=value are put in the environment unchanged, and words without 
a = are put into the environment with names like L0, L1 etc.

these can be used in the .profile to indicate specific actions when logging in:

if [ "$L0" = "ua" ]; then
  exec /usr/bin/ua
fi

so if i log in normally with:
login: myname
then i get put into my normal shell.

if i log in with:
login: myname ua
then i get the user agent.

incidentally, i can't stand the user agent.  
-- 
 From the virtual mind of Allyn Fratkin            allyn@sdcsvax.ucsd.edu    or
                          EMU Project              {ucbvax, decvax, ihnp4}
                          U.C. San Diego                         !sdcsvax!allyn