Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!know!zaphod.mps.ohio-state.edu!sdd.hp.com!ucsd!ucbvax!hplabs!hpfcso!hpfelg!koren
From: koren@hpfelg.HP.COM (Steve Koren)
Newsgroups: comp.sys.amiga
Subject: Re: REZ, resident, SKsh, newshell (I'm confused)
Message-ID: <13910037@hpfelg.HP.COM>
Date: 14 Aug 90 13:12:56 GMT
References: <1990Aug12.183427.24704@cbnewsm.att.com>
Organization: HP Elec. Design Div. -FtCollins
Lines: 40


> shell anyway.  Now I've switched to SKsh and REZ doesn't consider it pure, so
> it won't share it.  According to the SKsh docs, it *is* pure, and I have set
> the pure bit.  My first question is, anyone know why REZ doesn't consider SKsh

This part I can't answer.  SKsh is made pure by telling Lattice to make it
so (which I think involves some special code which copies the data segment
upon invocation).  Perhaps this is confusing REZ.

> hotkey.  It also means that the *first* SKsh is not running out of a resident
> copy, wasting ~60K.

> So, I tried making SKsh resident using the 1.3 command, and converting over
> to using the 1.3 shell.  This appears to have absolutely no effect.

You *can* make SKsh resident with the AmigaDos resident command.  Works
just fine; I do it on my system.  There is a brief description of how to
do this in the "Hints.doc" file (or at least, I think that's where it is).
However, if you use the c:resident command to make SKsh resident, you
have to then invoke SKsh from the AmigaDos shell (because others
won't see the AmigaDos resident list - see below).

> Anyone have some obvious pointers on how to make this all work?  The
> interaction between all the various resident systems has never been
> particularly clear

The trouble is that there are several different standards.  The AmigaDos
one seems to work great but is a little difficult to use from a
programmer's point of view.  The ARP solution (which the SKsh "resident"
command uses) is different.  In other words, if you add something
to the AmigaDos resident list, it won't appear on the Arp list, and
vice versa.  I don't know what REZ does, but it may be yet another
mechanism to accomplish the same thing.  Of course, none of these
mechanisms really interact very well; for example, a command added to
the Arp resident list will be handled correctly from the Arp shell or
SKsh, but not from the AmigaDos shell.  The same applies in reverse.
I will probably change SKsh to use the Commodore solution when I
compile under AmigaDos 2.0.

  - steve