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Re: Manually installed packages (was: Uninstalling Gnome)

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On Tue 29 Nov 2016 at 23:45:51 (+0000), Rodolfo Medina wrote:
> Rodolfo Medina <rodolfo.medina@gmail.com> writes:
> 
> > When I freshly installed Debian on my present system, I chose Gnome as my
> > Desktop manager, then I switched to Openbox.  To free space, now I want to
> > remove all those Gnome packages that I haven't used any more but am not sure
> > what of them I may delete without perturbing the system.  How can I know?
> > More in general, is there a way to know what packages one is not using and so
> > can be removed?
> 
> 
> If I run `apt-mark showmanual', a list of packages is ouput that are supposed
> to have been manually installed on my system but that actually I don't at all
> remember ever installing neither do I believe they truly have been nay I'm sure
> they haven't...  Any people could explain that?

apt-mark showmanual   gives you the complement of   apt-mark showauto.
The second paragraph of apt-mark's description explains what's meant
by "auto". So "manual" doesn't mean what you appear to assume it does,
that you were involved in manually selecting it for installation. It
just means "not auto".

Cheers,
David.

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Thread

Uninstalling Gnome Rodolfo Medina <rodolfo.medina@gmail.com> - 2016-11-28 22:50 +0100
  Re: Uninstalling Gnome Joe <joe@jretrading.com> - 2016-11-28 23:30 +0100
  Re: Uninstalling Gnome Brian <ad44@cityscape.co.uk> - 2016-11-28 23:40 +0100
    Re: Uninstalling Gnome Rodolfo Medina <rodolfo.medina@gmail.com> - 2016-11-29 10:20 +0100
      Re: Uninstalling Gnome rhkramer@gmail.com - 2016-11-29 14:10 +0100
        Re: Uninstalling Gnome rhkramer@gmail.com - 2016-11-29 14:10 +0100
          Re: Uninstalling Gnome Rodolfo Medina <rodolfo.medina@gmail.com> - 2016-11-29 14:40 +0100
      Re: Uninstalling Gnome Patrick Bartek <nemommxiv@gmail.com> - 2016-11-29 17:00 +0100
        Re: Uninstalling Gnome Greg Wooledge <wooledg@eeg.ccf.org> - 2016-11-29 17:10 +0100
        Re: Uninstalling Gnome Rodolfo Medina <rodolfo.medina@gmail.com> - 2016-11-29 17:20 +0100
          Re: Uninstalling Gnome Darac Marjal <mailinglist@darac.org.uk> - 2016-11-29 18:10 +0100
          Re: Uninstalling Gnome Joe <joe@jretrading.com> - 2016-11-29 18:50 +0100
            Re: Uninstalling Gnome Brian <ad44@cityscape.co.uk> - 2016-11-29 20:00 +0100
          Re: Uninstalling Gnome Seeker <seeker5528@comcast.net> - 2016-11-30 05:20 +0100
      Re: Uninstalling Gnome Brian <ad44@cityscape.co.uk> - 2016-11-29 19:00 +0100
  Re: Uninstalling Gnome Liam O'Toole <liam.p.otoole@gmail.com> - 2016-11-28 23:40 +0100
    Re: Uninstalling Gnome Rodolfo Medina <rodolfo.medina@gmail.com> - 2016-11-29 12:50 +0100
      Re: Uninstalling Gnome Curt <curty@free.fr> - 2016-11-29 13:30 +0100
        Re: Uninstalling Gnome Curt <curty@free.fr> - 2016-11-29 14:00 +0100
          Re: Uninstalling Gnome Rodolfo Medina <rodolfo.medina@gmail.com> - 2016-11-29 14:10 +0100
            Re: Uninstalling Gnome Rodolfo Medina <rodolfo.medina@gmail.com> - 2016-11-29 14:30 +0100
      Re: Uninstalling Gnome Liam O'Toole <liam.p.otoole@gmail.com> - 2016-11-29 18:10 +0100
        Re: Uninstalling Gnome Rodolfo Medina <rodolfo.medina@gmail.com> - 2016-11-29 18:30 +0100
          Re: Uninstalling Gnome Liam O'Toole <liam.p.otoole@gmail.com> - 2016-11-29 20:50 +0100
  Re: Uninstalling Gnome Rodolfo Medina <rodolfo.medina@gmail.com> - 2016-11-29 14:40 +0100
  Manually installed packages (was: Uninstalling Gnome) Rodolfo Medina <rodolfo.medina@gmail.com> - 2016-11-30 00:50 +0100
    Re: Manually installed packages (was: Uninstalling Gnome) David Wright <deblis@lionunicorn.co.uk> - 2016-11-30 01:30 +0100
      Re: Manually installed packages (was: Uninstalling Gnome) Cindy-Sue Causey <butterflybytes@gmail.com> - 2016-11-30 05:30 +0100
      Re: Manually installed packages Stefan Monnier <monnier@iro.umontreal.ca> - 2016-11-30 14:50 +0100
        Re: Manually installed packages David Wright <deblis@lionunicorn.co.uk> - 2016-12-01 17:10 +0100
          Re: Manually installed packages Curt <curty@free.fr> - 2016-12-01 18:10 +0100
            Re: Manually installed packages Rodolfo Medina <rodolfo.medina@gmail.com> - 2016-12-01 19:40 +0100
              Re: Manually installed packages Greg Wooledge <wooledg@eeg.ccf.org> - 2016-12-01 20:10 +0100
                Re: Manually installed packages Rodolfo Medina <rodolfo.medina@gmail.com> - 2016-12-03 14:40 +0100
                Re: Manually installed packages kamaraju kusumanchi <raju.mailinglists@gmail.com> - 2016-12-03 19:00 +0100
                Re: Manually installed packages Jörg-Volker Peetz <jvpeetz@web.de> - 2016-12-04 10:50 +0100
                Re: Manually installed packages Jörg-Volker Peetz <jvpeetz@web.de> - 2016-12-04 11:00 +0100
                Re: Manually installed packages Rodolfo Medina <rodolfo.medina@gmail.com> - 2016-12-04 13:00 +0100
                Re: Manually installed packages Jörg-Volker Peetz <jvpeetz@web.de> - 2016-12-04 13:10 +0100
              Re: Manually installed packages Jörg-Volker Peetz <jvpeetz@web.de> - 2016-12-01 20:50 +0100
              Re: Manually installed packages Brian <ad44@cityscape.co.uk> - 2016-12-01 22:00 +0100
          Re: Manually installed packages Cindy-Sue Causey <butterflybytes@gmail.com> - 2016-12-02 19:20 +0100
        Re: Manually installed packages Cindy-Sue Causey <butterflybytes@gmail.com> - 2016-12-02 18:30 +0100
    Re: Manually installed packages Jörg-Volker Peetz <jvpeetz@web.de> - 2016-11-30 09:50 +0100

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