Re: [PATCH] Fix hang if $OLDPWD points to inaccessible directory

[L A Walsh]

Chet Ramey wrote:
> This is all correct.  The change was introduced for a reason, and
> accommodating a rare occurrence by backing it out would be non-
> productive.
>   
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The reason?:

Why does bash clear OLDPWD when a child script is started?

OLDPWD is exported and passed to any children, but bash apparently clears 
OLDPWD whenever a child script is started...

GNU bash, version 4.1.2(1)-release (x86_64-redhat-linux-gnu)

Can bash be fixed to preserve the value of any OLDPWD in its initial 
environment, like it does with PWD?
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I don't see a reason...
I see a "want", but no real reason....

I'd agree it's a rare event to hit though, but when you do...

Requires console access, but changing /etc/profile to
insert a bad OLDPWD to a known down network location might not be
considered a trivial occurrence to someone stressed out and trying to log
in and find out why everyone logging in is hanging...