From: Vincent Lefevre <vincent@vinc17.net>
To: zsh-users@zsh.org
Subject: Re: how to get the absolute pathname of the current shell?
Date: Mon, 9 Dec 2013 10:45:10 +0100 [thread overview]
Message-ID: <20131209094510.GA31204@xvii.vinc17.org> (raw)
In-Reply-To: <20131209085330.GA30856@xvii.vinc17.org>
On 2013-12-09 09:53:30 +0100, Vincent Lefevre wrote:
> On 2013-12-06 08:30:20 -0800, Bart Schaefer wrote:
> > On Dec 6, 2:27pm, Vincent Lefevre wrote:
> > } Currently I'm doing: ${$(whence -p ${0#-}):a}
> > }
> > } But this doesn't work when there are symbolic links
> >
> > If the above is otherwise good enough, why not ${$(whence -p ${0#-}):A}
> > which uses realpath() when it is available? [See above about different
> > code depending on OS ...]
>
> Using :A instead of :a doesn't solve the problem.
After looking more closely, this is because "resolution of `..' occurs
before resolution of symbolic links" (see zshexpn(1) man page). Since
zsh's resolution of `..' is broken by design, i.e. incompatible with
real resolution, as done by realpath (and the Linux kernel), :A and :a
mustn't be used here.
--
Vincent Lefèvre <vincent@vinc17.net> - Web: <http://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
prev parent reply other threads:[~2013-12-09 9:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-06 13:27 Vincent Lefevre
2013-12-06 16:30 ` Bart Schaefer
2013-12-09 8:53 ` Vincent Lefevre
2013-12-09 9:31 ` Vincent Lefevre
2013-12-09 9:45 ` Vincent Lefevre [this message]
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