ENV file in ksh: is this smart? legal?

[Doug Gwyn]

In article <716 at rodan.acs.syr.edu> jdpeek at rodan.acs.syr.edu (Jerry Peek) writes:
>#2.  The next problem I have with ENV files -- if their name is stored
>in the environment (export ENV) -- is that Korn shell script files
>(shell programs) read them too.  I have some stuff in my ENV file that
>screws up shell scripts.

That's a Korn shell design botch.  Apparently DGK thought that the C shell
behavior should be mimicked.  Too bad he didn't first notice what a pain
it already was for C shell users.  When Doug Kingston and I added a
similar feature to the BRL Bourne shell, we were more careful, and I think
ours works right.  It does NOT get sourced for shell scripts (unless they
decide to source the file themselves, which would be exceedingly rare).