hey jim,

On Tue, Apr 04, 2006 at 05:02:21PM -0400, Jim Jensen wrote:
> I thought if that, but left it as [ -z "$?" -o "$?" == 0 ] just in case $? 
> was 
> not defined.  I would guess that is impossible with bash, but I am not sure 
> about other shells.  

i think $? is fairly universal, for any /bin/sh implementation anyway.

> I am also not sure about "0" vs 0, my understanding is that the quotes are 
> removed before the comparison, so it doesn't matter in this case.

it doesn't, but i find that it's good practice to quote everything
inside of [ ], and there's probably a bit of habit coming from
languages that do make such distinction.

> I am not sure about the = vs ==.  == appears to work in bash, but I don't 
> know 
that's definitely a bashism (and probably a tcshism).


        sean
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