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From: ken@maxepr.UUCP (Ken Brassler)
Newsgroups: comp.sys.att
Subject: Re: infinite regress
Message-ID: <488@maxepr.UUCP>
Date: Fri, 16-Oct-87 15:35:47 EDT
Article-I.D.: maxepr.488
Posted: Fri Oct 16 15:35:47 1987
Date-Received: Sat, 17-Oct-87 23:23:56 EDT
References: <3269@sol.ARPA>
Reply-To: ken@maxepr.UUCP (Ken Brassler)
Organization: Brassler Engineering Co., Mill Valley, CA
Lines: 37

In article <3269@sol.ARPA> brown@cs.rochester.edu (Chris Brown) writes:
>How can one escape from an infinitely recursive ksh function...
>..... if one isn't in ua?

Easy - create a second (or more) virtual terminal that you can
switch to via the suspd key.

First, ignore all warnings that you shouldn't do this, then edit
/etc/inittab and add a line which spawns another login shell.

Here is a fragment from my inittab:

: REPEAT:  DO NOT EDIT THIS FILE!!! IT IS PROGRAM-MODIFIED!!!!!
is:2:initdefault:
 vid:2:respawn:/etc/getty window 9600
 vi1:2:respawn:/etc/getty window 9600

Add this last line, indented one space as shown. Note that it is
named 'vi1', not 'vid'. ( you need some unique name) You can add
more lines labeled vi2, vi3 etc, for more virtual terminals, limited
by the number of window drivers available, but 2 or 3 total is
plenty.

Then do "telinit q", which tells init to re-examine this file.

Virtual terminals have many more uses than just killing a runaway
process - try it, you'll like it. Just hit the suspd key to get the
window select menu.

If you are a UA person, you don't need to do this, and it might
screw things up. However, I have 3 virtual terminals, with the UA
running in one of them, which is a convenient way to use the UA on
occasion.
-- 

Ken Brassler {ihnp4|qantel|pyramid|lll-crg}!ptsfa!maxepr!ken
			   ....ethos!gladys!ptsfa!maxepr!ken