On Mon, Feb 8, 2016 at 11:34 AM, Linda Walsh <b...@tlinx.org> wrote: > Chet Ramey wrote: >> On 2/8/16 9:59 AM, Andreas Schwab wrote: >>> Chet Ramey <chet.ra...@case.edu> 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. >>> ${PWD%/*} would be a reasonable value. FWIW, this is what ksh uses in >>> this case, it doesn't fail. >> Why would that be more reasonable than anything else? It references a >> path that doesn't exist. > Um...Not exactly. As long as there's a handle open to the previous path, > it still exists (at least on linux and unix).
Really? 11:40:24 dave@Vger:~$ mkdir -p a/a 11:40:30 dave@Vger:~$ cd a/a [remove a in another window] 11:40:49 dave@Vger:~/a/a$ touch file touch: cannot touch ‘file’: No such file or directory