Re: $(pwd) != $(/bin/pwd)

[Chet Ramey]

> Well, if I read
> http://www.opengroup.org/onlinepubs/9699919799/utilities/pwd.html
> correctly, bash pwd should output /home/darkk/bar in that case
> as $PWD does *not* contain an absolute path to the current
> directory.

Bash notices this when running in posix mode, and recanonicalizes the
pathname.  By default, it does not.

> Having said that, ksh93, ash and zsh behave like bash, pdksh and
> its derivatives being the only ones that behave as POSIX
> requires.

Bash behaves as Posix requires when running in posix mode.  When it's not,
it does the same thing as other shells.

Chet


-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/