linux-kernel - Re: extra slash in current path

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Message-ID: <BANLkTi=ZS8itWV+jHn2XxZ--P8cU3jFQQg@mail.gmail.com>
Date:	Thu, 23 Jun 2011 10:53:17 -0400
From:	yuyichao-mit <yuyichao@....edu>
To:	Michael Tokarev <mjt@....msk.ru>
Cc:	richard -rw- weinberger <richard.weinberger@...il.com>,
	Lars Täuber <taeuber@...w.de>,
	linux-kernel@...r.kernel.org, linux-c-programming@...r.kernel.org
Subject: Re: extra slash in current path

On Thu, Jun 23, 2011 at 10:31 AM, Michael Tokarev <mjt@....msk.ru> wrote:
> 23.06.2011 18:11, yuyichao-mit wrote:
>
>>>>> $ cd //
>>>>> $ pwd
>>>>> //
>
> The current directory is cached in $PWD environment
> variable by shell (bash at least).  This variable is
> checked in glibc (getcwd() et al) - if it is set and
> stat($PWD) is the same as stat("."), that value is used.
>
> It has nothing to do with kernel, probably the issue
> is in bash which somehow allows double slash for root
> dir (but not triple).

u r right. chdir in c and cd in csh doesn't have this problem.

it is bash stuff.

>
> /mjt
>
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