-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Tue, Jan 05, 2016 at 09:19:57AM -0600, David Wright wrote: > On Tue 05 Jan 2016 at 09:04:19 (+0100), to...@tuxteam.de wrote: > > On Mon, Jan 04, 2016 at 04:43:05PM -0500, Gary Dale wrote: > > > If that is a problem with symlinks, shouldn't it also be with > > > hardlinks? > > > > No, because of above: > > > > - symlink: permissions of linked-to file apply. Symlink has no "own" > > permissions. When linked-to file is removed, symlink is dangling. > > > > - hardlink: each has its own metadata (permissions, etc.). All hardlinks > > are equivalent. When last link to a file's data is removed, storage > > is recycled. > > That could be interpreted ambiguously. To clarify, the metadata is > stored in the inode, so all the hard links to a particular file/inode > share the same information, thus:
You are too polite. What I wrote is plainly wrong on a second look. Sorry. Yes, the metadata is in the inode and not in the directory entry. > 07:45 $ touch foo > 07:45 $ ls -li [fb]* > 488715 -rw-r----- 1 david david 0 Jan 5 07:45 foo > 07:45 $ ln foo bar > 07:55 $ ls -li [fb]* > 488715 -rw-r----- 2 david david 0 Jan 5 07:45 bar > 488715 -rw-r----- 2 david david 0 Jan 5 07:45 foo > 07:55 $ chmod a+r bar > 07:57 $ ls -li [fb]* > 488715 -rw-r--r-- 2 david david 0 Jan 5 07:45 bar > 488715 -rw-r--r-- 2 david david 0 Jan 5 07:45 foo > 07:57 $ touch bar > 07:57 $ ls -li [fb]* > 488715 -rw-r--r-- 2 david david 0 Jan 5 07:57 bar > 488715 -rw-r--r-- 2 david david 0 Jan 5 07:57 foo > 07:57 $ ls -li [fb]* > 488715 -rw-r--r-- 2 david david 0 Jan 5 07:57 bar > 488715 -rw-r--r-- 2 david david 0 Jan 5 07:57 foo > 07:58 $ > > # chown nobody /tmp/bar > > 07:58 $ ls -li [fb]* > 488715 -rw-r--r-- 2 nobody david 0 Jan 5 07:57 bar > 488715 -rw-r--r-- 2 nobody david 0 Jan 5 07:57 foo > 07:59 $ > > Each symlink has its own metadata in its inode, but most of it > is ignored most of the time (eg ownership), or can't be changed > (eg permissions). Spot on. Thanks for the correction (and for your politeness :) regards - -- tomás -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAlaL2TEACgkQBcgs9XrR2kY9KQCffkTMtTA1gt0qLt94NUM9subh VBoAn195zfUGSv9DVwjFmZCstTQTKSRZ =mjYZ -----END PGP SIGNATURE-----
