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From: thomas@uplog.se (Thomas Hameenaho)
Newsgroups: comp.unix.questions
Subject: Re: Login shell?
Message-ID: <314@uplog.se>
Date: 17 Oct 88 12:59:49 GMT
References: <3ed799bc.103e8@hi-csc.UUCP> <13851@mimsy.UUCP> <511@imec.UUCP> <1529@solo9.cs.vu.nl>
Reply-To: thomas@uplog.UUCP (Thomas Hameenaho)
Organization: TeleLOGIC Uppsala AB
Lines: 14

One way of deciding wether or not the current shell is the login shell
is the fact that the name of the login shell is prependended with a '-'.
If for instance I run tcsh as my login shell it will be exec:ed with
-tcsh as argv[0].

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.

-- 
Real life:	Thomas Hameenaho		Email:	thomas@uplog.{se,uucp}
Snail mail:	TeleLOGIC Uppsala AB		Phone:	+46 18 189406
		Box 1218			Fax:	+46 18 132039
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