Chet Ramey wrote:
On 2/8/16 9:59 AM, Andreas Schwab wrote:
Chet Ramey <[email protected]> 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).
