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From: kai@ihlpa.ATT.COM (Irwin)
Newsgroups: comp.unix.wizards
Subject: Re: System wide .login
Message-ID: <4668@ihlpa.ATT.COM>
Date: Fri, 17-Jul-87 21:09:59 EDT
Article-I.D.: ihlpa.4668
Posted: Fri Jul 17 21:09:59 1987
Date-Received: Sat, 18-Jul-87 18:35:29 EDT
References: <2626@sdsu.UUCP> <142700009@tiger.UUCP>
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 71
Summary: I used to use a terminal "MAP" file

In article <142700009@tiger.UUCP>, rjd@tiger.UUCP writes:
> 
> >     I've tried to set up a shell script in the systems /etc/profile
> > to read user input and set the terminal type accordingly, but I ran into
> > a problem with the TERM variable being exported to the login shell and
> > not to the users shell.  A system wide .login might run into similar
> > 'environment' problems.  I'm running System V (ver 3.0) on a 3B2-400.
> >     An ATT technician tells me there is a way to fix this.  Any ideas
> > on this or the system wide .login??
> > 
> >          Andy Wing  <V2002A@TEMPLEVM.BITNET>
> 
>   The users login shell and users shell are the same shell.  All you need to
> do is to remember to export the enviroment variable, e.g.:
> ---from a sample /etc/profile:-----------
> /bin/echo "Enter terminal type: \c"
> read TERM
> export TERM
> -----------------------------------------
> simple, huh?
> 
> Randy Davis					UUCP:(ihnp4!)3b2fst!randy

I used to use a little shell script called "termlo" that I wrote that would
look up hardwired terminal types in a "MAP" and only prompt for a terminal
if it was a dial up port ( actually it would "best guess" the default for 
dial-ups too.)

the "MAP" looked somthing like:

/dev/console::4425:system console:computer center
/dev/tty001::vt100:user terminal:room 514
/dev/tty010:bob:vt100:dial-up:bobs PC
/dev/tty010:bobo:wyse30:dial-up:bobos desk
...etc

so console would always be an AT&T 4425, tty001 always a vt100, dialups based
on the user id

so in /etc/profile:

export TERM
TTY=`tty`
TERMLO=`grep $TTY /etc/termmap | cut -d: -f1-3`
USER=`echo "$TERMLO" | grep $LOGNAME | cut -d: -f2`
TERM=`echo "$TERMLO" | grep "$TTY:$USER:" | cut -d: -f3`
if test -n "$USER"
then
echo "Enter Terminal Type [Default $TERM]:\c"
read term
TERM=${term:-$TERM}
fi


and in a shell script called termlo:

echo "TTY\t\tUSER\t\tUSE\t\tDESCRIPTION"
echo 
sed 's/:/<TAB><TAB>/g' < /etc/termmap


I'm trying to do this by memory so i won't promise this will work with out
some debugging but it worked very well and in the invironment it was used
it generated correct defaults MOST of the time, and the "termlo" command
gave a pretty good indication as to where the login was comming from (termlo
was more elaberate than I show but I don't have the script handy)

Ken A. Irwin 
AT&T Bell Labs, Naperville
IHP 1a332
(312) 416-4485