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Re: ln -s Bug?
From: |
Andreas Schwab |
Subject: |
Re: ln -s Bug? |
Date: |
Thu, 01 Nov 2007 18:27:17 +0100 |
User-agent: |
Gnus/5.110006 (No Gnus v0.6) Emacs/22.1 (gnu/linux) |
Marcus Nutzinger <address@hidden> writes:
> But if I do the same, just with the -s option to create a symlink, the
> following happens:
>
> $ ls -l
> drwx------ 2 nuuz nuuz 4,0K 2007-11-01 15:13 dir
> -rw------- 1 nuuz nuuz 0 2007-11-01 15:13 file
> $ ln -s file dir/
> $ ls -l dir
> lrwxrwxrwx 1 nuuz nuuz 1 2007-11-01 15:14 file -> file
>
> So "file" points to itself and not to "../file" as I would expect it
> after creating the link.
A symbolic link is just that: symbolic. The symlink target is merely a
string that is interpreted only at the time the symlink is followed,
other than that it has no inherent meaning at all. It does not even
have to point to a valid file name, if you never try to follow the
symlink you can put any kind of interpretation on the name of the
target. For example, you can use a symlink as a kind of lock, encoding
the owner pid into its target name.
Andreas.
--
Andreas Schwab, SuSE Labs, address@hidden
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."