Re: `cd .` in non-existent directory leads into weird corner case

[Peter Stephenson <Peter.Stephenson@csr.com>]

On Mon, 2 Apr 2012 13:10:17 +0200
Mikael Magnusson <mikachu@gmail.com> wrote:
> One (semi-)realistic case I came up with, one shell sits in a
> directory, someone else first moves the directory, then deletes it,
> then the shell tries to 'cd ..'. In this case I would like it to end
> up in the new parent directory as it does now [1], not the old
> "$PWD:h". (with chasedots/-P) (and even if I did 'cd .' first for some
> weird reason).

Hmmm... when I read this before I concentrated on "as it does now" and
skipped the "not the old $PWD:h".  I don't see how that can work.
You're saying we should use the physical directory to find its parent
even though it doesn't exist any more.

Are you saying you think the shell currently has some magic to do
this?  It seems to violate the laws of physics, unless we recorded
the physical directory as a second PWD just on the off chance someone
deletes the current one, which seems silly.

-- 
Peter Stephenson <pws@csr.com>            Software Engineer
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