installing a debian meta package like "task-xfce-desktop" and later removing (and auto-removing unneeded dependencies) does not remove all of the packages that were originally installed.
<petn-randall> cweiske: If some other package recommends/suggests any of those packages, they won't get removed.
<petn-randall> cweiske: You can see which packages got installed via /var/log/apt/history.log, then just remove them.
root@boo:~# apt install task-xfce-desktop Paketlisten werden gelesen... Fertig Abhängigkeitsbaum wird aufgebaut. Statusinformationen werden eingelesen.... Fertig The following additional packages will be installed: exfalso exo-utils fonts-font-awesome fonts-linuxlibertine fonts-sil-gentium fonts-sil-gentium-basic gtk2-engines-xfce hyphen-en-us libbsh-java libexo-1-0 libexo-common libexo-helpers libgarcon-1-0 libgarcon-common libgtksourceview2.0-0 libgtksourceview2.0-common libjs-modernizr libjs-sphinxdoc libjs-underscore liblightdm-gobject-1-0 libnotify-bin libqrencode3 libreoffice libreoffice-gtk2 libreoffice-help-en-us libreoffice-librelogo libreoffice-nlpsolver libreoffice-ogltrans libreoffice-pdfimport libreoffice-script-provider-bsh libreoffice-script-provider-js libreoffice-script-provider-python libreoffice-wiki-publisher libtagc0 libthunarx-2-0 libtidy5 libxfce4panel-2.0-4 libxfce4ui-utils light-locker lightdm lightdm-gtk-greeter mousepad mythes-en-us orage python-feedparser python-libxml2 python-musicbrainzngs python-mutagen python-utidylib quodlibet ristretto sphinx-rtd-theme-common thunar thunar-archive-plugin thunar-data thunar-media-tags-plugin thunar-volman xfburn xfce4 xfce4-appfinder xfce4-battery-plugin xfce4-clipman xfce4-clipman-plugin xfce4-cpufreq-plugin xfce4-cpugraph-plugin xfce4-datetime-plugin xfce4-dict xfce4-diskperf-plugin xfce4-fsguard-plugin xfce4-genmon-plugin xfce4-goodies xfce4-mailwatch-plugin xfce4-mount-plugin xfce4-netload-plugin xfce4-notes xfce4-notes-plugin xfce4-notifyd xfce4-panel xfce4-places-plugin xfce4-power-manager xfce4-power-manager-data xfce4-power-manager-plugins xfce4-pulseaudio-plugin xfce4-screenshooter xfce4-sensors-plugin xfce4-session xfce4-settings xfce4-smartbookmark-plugin xfce4-systemload-plugin xfce4-taskmanager xfce4-terminal xfce4-timer-plugin xfce4-verve-plugin xfce4-wavelan-plugin xfce4-weather-plugin xfce4-whiskermenu-plugin xfce4-xkb-plugin xfdesktop4 xfdesktop4-data xsane xsane-common Vorgeschlagene Pakete: libreoffice-grammarcheck myspell-dictionary openclipart2-libreoffice | openclipart-libreoffice pstoedit unixodbc libreoffice-officebean mediawiki xserver-xephyr python-musicbrainzngs-doc python-mutagen-doc gtk3-engines-xfce xfce4-cellmodem-plugin xfce4-linelight-plugin xfce4-messenger-plugin xfce4-mpc-plugin xfce4-radio-plugin xfswitch-plugin xfce4-hdaps gigolo parole xsensors fortunes-mod pm-utils gocr | cuneiform | tesseract-ocr | ocrad gv hylafax-client | mgetty-fax Empfohlene Pakete: xfce4-mixer Die folgenden NEUEN Pakete werden installiert: exfalso exo-utils fonts-font-awesome fonts-linuxlibertine fonts-sil-gentium fonts-sil-gentium-basic gtk2-engines-xfce hyphen-en-us libbsh-java libexo-1-0 libexo-common libexo-helpers libgarcon-1-0 libgarcon-common libgtksourceview2.0-0 libgtksourceview2.0-common libjs-modernizr libjs-sphinxdoc libjs-underscore liblightdm-gobject-1-0 libnotify-bin libqrencode3 libreoffice libreoffice-gtk2 libreoffice-help-en-us libreoffice-librelogo libreoffice-nlpsolver libreoffice-ogltrans libreoffice-pdfimport libreoffice-script-provider-bsh libreoffice-script-provider-js libreoffice-script-provider-python libreoffice-wiki-publisher libtagc0 libthunarx-2-0 libtidy5 libxfce4panel-2.0-4 libxfce4ui-utils light-locker lightdm lightdm-gtk-greeter mousepad mythes-en-us orage python-feedparser python-libxml2 python-musicbrainzngs python-mutagen python-utidylib quodlibet ristretto sphinx-rtd-theme-common task-xfce-desktop thunar thunar-archive-plugin thunar-data thunar-media-tags-plugin thunar-volman xfburn xfce4 xfce4-appfinder xfce4-battery-plugin xfce4-clipman xfce4-clipman-plugin xfce4-cpufreq-plugin xfce4-cpugraph-plugin xfce4-datetime-plugin xfce4-dict xfce4-diskperf-plugin xfce4-fsguard-plugin xfce4-genmon-plugin xfce4-goodies xfce4-mailwatch-plugin xfce4-mount-plugin xfce4-netload-plugin xfce4-notes xfce4-notes-plugin xfce4-notifyd xfce4-panel xfce4-places-plugin xfce4-power-manager xfce4-power-manager-data xfce4-power-manager-plugins xfce4-pulseaudio-plugin xfce4-screenshooter xfce4-sensors-plugin xfce4-session xfce4-settings xfce4-smartbookmark-plugin xfce4-systemload-plugin xfce4-taskmanager xfce4-terminal xfce4-timer-plugin xfce4-verve-plugin xfce4-wavelan-plugin xfce4-weather-plugin xfce4-whiskermenu-plugin xfce4-xkb-plugin xfdesktop4 xfdesktop4-data xsane xsane-common 0 aktualisiert, 102 neu installiert, 0 zu entfernen und 0 nicht aktualisiert. Es müssen 34,2 MB an Archiven heruntergeladen werden. Nach dieser Operation werden 152 MB Plattenplatz zusätzlich benutzt.
root@boo:~# apt purge --auto-remove task-xfce-desktop Paketlisten werden gelesen... Fertig Abhängigkeitsbaum wird aufgebaut. Statusinformationen werden eingelesen.... Fertig Die folgenden Pakete werden ENTFERNT: exfalso* fonts-font-awesome* fonts-linuxlibertine* fonts-sil-gentium* fonts-sil-gentium-basic* hyphen-en-us* libbsh-java* libjs-modernizr* libjs-sphinxdoc* libjs-underscore* libreoffice* libreoffice-gtk2* libreoffice-help-en-us* libreoffice-librelogo* libreoffice-nlpsolver* libreoffice-ogltrans* libreoffice-pdfimport* libreoffice-script-provider-bsh* libreoffice-script-provider-js* libreoffice-script-provider-python* libreoffice-wiki-publisher* libtidy5* mythes-en-us* python-feedparser* python-libxml2* python-musicbrainzngs* python-mutagen* python-utidylib* quodlibet* sphinx-rtd-theme-common* task-xfce-desktop* xsane* xsane-common* 0 aktualisiert, 0 neu installiert, 33 zu entfernen und 0 nicht aktualisiert. Nach dieser Operation werden 83,3 MB Plattenplatz freigegeben.