Path: utzoo!utgpu!attcan!uunet!husc6!rutgers!elbereth.rutgers.edu!ron.rutgers.edu!ron
From: ron@ron.rutgers.edu (Ron Natalie)
Newsgroups: comp.unix.questions
Subject: Re: Login shell?
Message-ID: <Oct.23.09.32.38.1988.11774@ron.rutgers.edu>
Date: 23 Oct 88 13:32:40 GMT
References: <3ed799bc.103e8@hi-csc.UUCP> <13851@mimsy.UUCP> <511@imec.UUCP> <1529@solo9.cs.vu.nl> <314@uplog.se>
Organization: Rutgers Univ., New Brunswick, N.J.
Lines: 5

> Just take the output from ps -x (or -f if on system V) grep for pid $$
> and check if the command name begins with a '-'. If that is the case the
> shell is the login shell.

How about just comparing $0.