[gentoo-user] How can I create "dynamic" link?

[gentoo-user] How can I create "dynamic" link?

[Jarry]

Hi,
I am facing this problem: I have subdirectory, let's say
"/some/dir". I would like to create some kind of "dynamic"
and "preliminary" link, so that any future subdirectories,
created later in /some will in fact be links, pointing to
/some/dir.

So if later any user does:
cd /some
mkdir whatever

There should not be subdirectory /some/whatever, but actually link:
/some/whatever -> /some/dir

Is it possible?

Jarry

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[gentoo-user] Re: How can I create "dynamic" link?

[Nikos Chantziaras]

On 08/11/2010 12:06 AM, Jarry wrote:
> Hi,
> I am facing this problem: I have subdirectory, let's say
> "/some/dir". I would like to create some kind of "dynamic"
> and "preliminary" link, so that any future subdirectories,
> created later in /some will in fact be links, pointing to
> /some/dir.
>
> So if later any user does:
> cd /some
> mkdir whatever
>
> There should not be subdirectory /some/whatever, but actually link:
> /some/whatever -> /some/dir
>
> Is it possible?


mkdir creates directories, not links.  You need to do "ln -s /some/dir 
/some/whatever".  Having mkdir create links would be a bug.

Re: [gentoo-user] How can I create "dynamic" link?

[Bill Longman]

On 08/10/2010 02:06 PM, Jarry wrote:
> Hi,
> I am facing this problem: I have subdirectory, let's say
> "/some/dir". I would like to create some kind of "dynamic"
> and "preliminary" link, so that any future subdirectories,
> created later in /some will in fact be links, pointing to
> /some/dir.
> 
> So if later any user does:
> cd /some
> mkdir whatever
> 
> There should not be subdirectory /some/whatever, but actually link:
> /some/whatever -> /some/dir
> 
> Is it possible?

Unless you write your own kernel module, the answer is "No."

Re: [gentoo-user] How can I create "dynamic" link?

[Lanikai]

  On 08/10/2010 11:06 PM, Jarry wrote:
> Hi,
> I am facing this problem: I have subdirectory, let's say
> "/some/dir". I would like to create some kind of "dynamic"
> and "preliminary" link, so that any future subdirectories,
> created later in /some will in fact be links, pointing to
> /some/dir.
>
> So if later any user does:
> cd /some
> mkdir whatever
>
> There should not be subdirectory /some/whatever, but actually link:
> /some/whatever -> /some/dir
>
> Is it possible?
>
> Jarry
>
Hello,

this is probably not an answer for your question but... You can achieve 
this in different way - write small script and after this use some 
program (for example cron) which will execute that script every few 
seconds/minutes. The script may remove every empty directory located in 
/some (excluding /some/dir) and create a link to it.

Regards, Paul.

[gentoo-user] Re: How can I create "dynamic" link?

[Grant Edwards]

On 2010-08-10, Jarry <mr.jarry@gmail.com> wrote:

> I am facing this problem: I have subdirectory, let's say
> "/some/dir". I would like to create some kind of "dynamic"
> and "preliminary" link, so that any future subdirectories,
> created later in /some will in fact be links, pointing to
> /some/dir.

Short answer: you can't do that.

Long answer: tell us what problem you're really facing (for which you
think "dynamic link" is a solution), and we'll try to help you solve
it.

-- 
Grant

Re: [gentoo-user] How can I create "dynamic" link?

[Alan McKinnon]

On Wednesday 11 August 2010 00:09:13 Bill Longman wrote:
> On 08/10/2010 02:06 PM, Jarry wrote:
> > Hi,
> > I am facing this problem: I have subdirectory, let's say
> > "/some/dir". I would like to create some kind of "dynamic"
> > and "preliminary" link, so that any future subdirectories,
> > created later in /some will in fact be links, pointing to
> > /some/dir.
> > 
> > So if later any user does:
> > cd /some
> > mkdir whatever
> > 
> > There should not be subdirectory /some/whatever, but actually link:
> > /some/whatever -> /some/dir
> > 
> > Is it possible?
> 
> Unless you write your own kernel module, the answer is "No."

The slightly longer answer is that the idea, as presented, is stupid. Looks 
like a foolish grasp at a "solution" for a "problem".

If the OP wants a link in /some/ he needs to make one using ln
If the OP wants a subdir in /some/ he needs to make one using mkdir

There is no magic way to turn one into the other because they are different. 
It appears to me that he finds things like /some/otherdir/ that should never 
have been created at all and their contents should have gone into /some/dir/ 
instead. There's an easy solution to that:

remove write permission from /some/ and add it to /some/dir/ for all users 
that write to /some/dir/. They can't create the wrong directories without 
permissions.


-- 
alan dot mckinnon at gmail dot com