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Groups > linux.debian.user > #190509

Re: File permission confusion [Debian 9.1 with MATE]

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On 01/01/2018 11:34 AM, Michael Stone wrote:
> On Mon, Jan 01, 2018 at 11:28:37AM -0600, Richard Owlett wrote:
>> WHY should one with "Read-only" access be able to delete it?
>
> A number of people have already explained that the ability delete
> requires write permission on the directory containing the file. You
> don't seem to have acknowledged that. This is the only way the semantics
> make sense, or else a user would be able to create a file that the owner
> of the directory would not be able to get rid of. As someone else
> already posted, when you delete a file you're not really deleting the
> file--you're removing one of potentially many directory entries in one
> of potentially many directories. Most people can get by without knowing
> that, and acting as though the directory entry and the file are unique
> and related, but if you start trying to manipulate permissions it is
> important to understand what's actually going on.
>
> Mike Stone
>

It's one of those theory and ability to apply.
That's why I asked for pointer suitable tutorial.
[https://lists.debian.org/debian-user/2018/01/msg00008.html]

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File permission confusion [Debian 9.1 with MATE] Richard Owlett <rowlett@cloud85.net> - 2018-01-01 12:30 +0100
  Re: File permission confusion [Debian 9.1 with MATE] Mark Fletcher <mark27q1@gmail.com> - 2018-01-01 12:40 +0100
  [ADDENDUM] File permission confusion [Debian 9.1 with MATE] Richard Owlett <rowlett@cloud85.net> - 2018-01-01 12:40 +0100
    Re: File permission confusion [Debian 9.1 with MATE] "Thomas Schmitt" <scdbackup@gmx.net> - 2018-01-01 13:10 +0100
      Re: File permission confusion [Debian 9.1 with MATE] Richard Owlett <rowlett@cloud85.net> - 2018-01-01 18:00 +0100
        Re: File permission confusion [Debian 9.1 with MATE] Dan Purgert <dan@djph.net> - 2018-01-01 19:30 +0100
          Re: File permission confusion [Debian 9.1 with MATE] <tomas@tuxteam.de> - 2018-01-01 19:40 +0100
            Re: File permission confusion [Debian 9.1 with MATE] Dan Purgert <dan@djph.net> - 2018-01-02 12:10 +0100
        Re: File permission confusion [Debian 9.1 with MATE] "Thomas Schmitt" <scdbackup@gmx.net> - 2018-01-01 19:40 +0100
          Re: File permission confusion [Debian 9.1 with MATE] Richard Owlett <rowlett@cloud85.net> - 2018-01-02 15:10 +0100
        Re: File permission confusion [Debian 9.1 with MATE] Eduardo M KALINOWSKI <eduardo@kalinowski.com.br> - 2018-01-02 13:40 +0100
          Re: File permission confusion [Debian 9.1 with MATE] Richard Owlett <rowlett@cloud85.net> - 2018-01-02 15:20 +0100
            Re: File permission confusion [Debian 9.1 with MATE] "Thomas Schmitt" <scdbackup@gmx.net> - 2018-01-02 16:40 +0100
              Re: File permission confusion [Debian 9.1 with MATE] Brian <ad44@cityscape.co.uk> - 2018-01-02 19:40 +0100
                Re: File permission confusion [Debian 9.1 with MATE] Greg Wooledge <wooledg@eeg.ccf.org> - 2018-01-02 19:40 +0100
                Re: File permission confusion [Debian 9.1 with MATE] Brian <ad44@cityscape.co.uk> - 2018-01-02 19:50 +0100
                Re: File permission confusion [Debian 9.1 with MATE] Richard Owlett <rowlett@cloud85.net> - 2018-01-02 20:40 +0100
                Re: File permission confusion [Debian 9.1 with MATE] Brian <ad44@cityscape.co.uk> - 2018-01-02 21:10 +0100
                Re: File permission confusion [Debian 9.1 with MATE] Curt <curty@free.fr> - 2018-01-02 22:20 +0100
                Re: File permission confusion [Debian 9.1 with MATE] Dan Purgert <dan@djph.net> - 2018-01-02 21:30 +0100
                Re: File permission confusion [Debian 9.1 with MATE] Brian <ad44@cityscape.co.uk> - 2018-01-02 21:50 +0100
                Re: File permission confusion [Debian 9.1 with MATE] Dan Purgert <dan@djph.net> - 2018-01-03 00:20 +0100
                Re: File permission confusion [Debian 9.1 with MATE] "Thomas Schmitt" <scdbackup@gmx.net> - 2018-01-02 21:10 +0100
                Re: File permission confusion [Debian 9.1 with MATE] Brian <ad44@cityscape.co.uk> - 2018-01-02 21:40 +0100
                Re: File permission confusion [Debian 9.1 with MATE] Richard Hector <richard@walnut.gen.nz> - 2018-01-06 06:20 +0100
    Re: [ADDENDUM] File permission confusion [Debian 9.1 with MATE] Brian <ad44@cityscape.co.uk> - 2018-01-01 13:10 +0100
    Re: [ADDENDUM] File permission confusion [Debian 9.1 with MATE] Brian <ad44@cityscape.co.uk> - 2018-01-01 20:40 +0100
  Re: File permission confusion [Debian 9.1 with MATE] David Wright <deblis@lionunicorn.co.uk> - 2018-01-01 17:30 +0100
    Re: File permission confusion [Debian 9.1 with MATE] Richard Owlett <rowlett@cloud85.net> - 2018-01-01 18:30 +0100
      Re: File permission confusion [Debian 9.1 with MATE] Michael Stone <mstone@debian.org> - 2018-01-01 18:40 +0100
        Re: File permission confusion [Debian 9.1 with MATE] Richard Owlett <rowlett@cloud85.net> - 2018-01-01 18:50 +0100
          Re: File permission confusion [Debian 9.1 with MATE] Michael Stone <mstone@debian.org> - 2018-01-01 19:10 +0100
            Re: File permission confusion [Debian 9.1 with MATE] <tomas@tuxteam.de> - 2018-01-01 19:20 +0100
              Re: File permission confusion [Debian 9.1 with MATE] Michael Stone <mstone@debian.org> - 2018-01-01 19:40 +0100
                Re: File permission confusion [Debian 9.1 with MATE] Greg Wooledge <wooledg@eeg.ccf.org> - 2018-01-02 15:30 +0100
                Re: File permission confusion [Debian 9.1 with MATE] Michael Stone <mstone@debian.org> - 2018-01-02 23:50 +0100
          Re: File permission confusion [Debian 9.1 with MATE] <tomas@tuxteam.de> - 2018-01-01 19:20 +0100

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