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From: ken@cs.rochester.edu (Ken Yap)
Newsgroups: comp.unix.questions
Subject: Re: \"+\" filename -> /bin/sh !
Message-ID: <3351@sol.ARPA>
Date: Mon, 19-Oct-87 00:41:02 EDT
Article-I.D.: sol.3351
Posted: Mon Oct 19 00:41:02 1987
Date-Received: Tue, 20-Oct-87 00:46:32 EDT
References: <9844@brl-adm.ARPA>
Reply-To: ken@cs.rochester.edu (Ken Yap)
Organization: U of Rochester, CS Dept, Rochester, NY
Lines: 12

Since + is a non-binary, you are effectively doing /bin/sh +.  Try
this:

	/bin/sh +

and get an interactive sh. In fact any argument starting with +
will get you the same result.

My guess is that sh discards arguments starting with + so effectively
you are doing just /bin/sh. This is on SunOS 3.4.

	Ken