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Re: bug when 'cd ..' to a directory who's parent has been deleted


From: Andreas Schwab
Subject: Re: bug when 'cd ..' to a directory who's parent has been deleted
Date: Mon, 08 Feb 2016 16:36:22 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)

Chet Ramey <address@hidden> writes:

> On 2/8/16 9:59 AM, Andreas Schwab wrote:
>> Chet Ramey <address@hidden> writes:
>> 
>>> `cd ..' should fail, since the parent no longer exists, and the pathname
>>> canonicalization should fail, since there's presumably no longer a valid
>>> path to reach the current directory.  No value for $PWD is correct.
>> 
>> ${PWD%/*} would be a reasonable value.  FWIW, this is what ksh uses in
>> this case, it doesn't fail.
>
> Why would that be more reasonable than anything else?  It references a
> path that doesn't exist.

Sorry, I misread the OP's message.  I didn't notice it's about the
parent's parent, not the parent.

Andreas.

-- 
Andreas Schwab, SUSE Labs, address@hidden
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