Ostatnio zainstalowałem kde i nie przypadło mi do gustu (jednak wolę gnome) jaką komendą odinstalować całkowicie KDE z systemu?
sudo apt-get remove adept adept-batch adept-common adept-installer adept-manager adept-notifier adept-updater akregator amarok amarok-xine apt-index-watcher ark arts bogofilter bogofilter-bdb bogofilter-common dcraw debtags digikam enscript gtk2-engines-gtk-qt gwenview hwdb-client-kde k3b kaddressbook kaffeine kaffeine-xine kamera karm katapult kate kaudiocreator kbstate kcontrol kcron kde-guidance kde-guidance-powermanager kde-icons-mono kde-systemsettings kdeadmin-kfile-plugins kdebase-bin kdebase-data kdebase-kio-plugins kdebluetooth kdegraphics-kfile-plugins kdelibs-data kdelibs4c2a kdemultimedia-kfile-plugins kdemultimedia-kio-plugins kdenetwork-filesharing kdenetwork-kfile-plugins kdepasswd kdepim-kio-plugins kdepim-kresources kdepim-wizards kdeprint kdesktop kdm kdnssd keep kfind kghostview khelpcenter kicker kio-apt kio-locate kipi-plugins klipper kmag kmail kmailcvt kmenuedit kmilo kmix kmousetool kmplayer-base kmplayer-konq-plugins knetworkconf knotes koffice-data koffice-libs konq-plugins konqueror konqueror-nsplugins konsole kontact konversation kooka kopete korganizer kpdf kpf kppp krdc krfb krita krita-data kscd kscreensaver ksmserver ksnapshot ksplash ksplash-engine-moodin ksvg ksysguard ksysguardd ksystemlog ktorrent kubuntu-artwork-usplash kubuntu-default-settings kubuntu-desktop kubuntu-docs kubuntu-konqueror-shortcuts kwalletmanager kwin kwin-style-crystal language-selector-qt libakode2 libarts1-akode libarts1c2a libartsc0 libavahi-compat-libdnssd1 libavahi-qt3-1 libc6-dev libcurl3-gnutls libdbus-qt-1-1c2 libexif-dev libflac++5c2 libgmp3c2 libgpgme11 libgphoto2-2-dev libgsl0 libifp4 libimlib2 libjasper-runtime libjpeg-progs libk3b2 libkcal2b libkcddb1 libkdepim1a libkexif1 libkipi0 libkleopatra1 libkmime2 libkonq4 libkpimexchange1 libkpimidentities1 libkscan1 libksieve0 libktnef1 liblockdev1 liblua50 liblualib50 libmagick++9c2a libmimelib1c2a libmodplug0c2 libmpcdec3 libmysqlclient15off libnjb5 libnss-mdns liboggflac3 libopenexr2c2a libpcre3 libpoppler1-qt libpq4 libpythonize0 libqt3-mt libqt4-core libqt4-gui libqt4-qt3support libqt4-sql librsync1 libruby1.8 libsamplerate0 libskim0 libsqlite0 libtdb1 libtunepimp3 libungif4g libvorbisfile3 libxcomposite1 libxine1 libxvmc1 linux-libc-dev mysql-common openoffice.org-kde openoffice.org-style-crystal perl-suid poster psutils pykdeextensions python-elementtree python-kde3 python-qt3 python-qt4 python-sip4 python2.4-dev qca-tls qobex rdiff-backup ruby ruby1.8 scim-qtimm skim speedcrunch vorbis-tools wlassistant
To wszystko mam wkleić do terminala czy jak? 
Sorry, ale dopiero co zaczynam przygodę z ubuntu 
Tak
Takie coś mi wyskakuje:
Sprawdź czy nie masz uruchomionego jakiegoś menadżera pakietów (np. Synaptic) albo jakiegoś menadżera auktalizacji, czy innego apt.
dragonn , a jak to sprawdzić?
Wystarczy odczytać zawartość tego pliku, a następnie wykonać:
ps x | grep 'zawartość'Jeśli nie widzisz włączonego Synaptica i nie korzystasz z Apta to najprawdopodobniej menedżer aktualizacji działa w tle, aby to sprawdzić możesz w terminalu wpisać:
ps -e | grep update-manager | awk '{print $1,$4}'
I jeśli jest jakikolwiek wynik to czytasz jaki PID ma ten menedżer aktualizacji i ubijasz jego proces, np. poleceniem kill -kill numer_PID albo wpisujesz jeszcze raz takie coś:
kill -kill `ps -e | grep update-manager | awk '{print $1}'`
Pozdrawiam!
Tym poleceniem usuniesz KDE(4) z Ubuntu 9.10.
sudo apt-get remove akonadi-server akregator amarok amarok-common amarok-utils apport-kde apturl-kde ark brltty cdrdao dolphin dragonplayer exiv2 foomatic-db-gutenprint gdebi-kde gnupg-agent gtk2-engines-qtcurve gwenview hpijs-ppds ibus-qt4 ijsgutenprint install-package jockey-kde k3b k3b-data kaddressbook kamera kate kcm-gtk kde-icons-oxygen kde-style-qtcurve kde-window-manager kde-zeroconf kdebase-bin kdebase-data kdebase-plasma kdebase-runtime kdebase-runtime-bin-kde4 kdebase-runtime-data kdebase-runtime-data-common kdebase-workspace-bin kdebase-workspace-data kdebase-workspace-kgreet-plugins kdebase-workspace-libs4+5 kdebluetooth kdegraphics-strigi-plugins kdelibs-bin kdelibs5 kdelibs5-data kdemultimedia-kio-plugins kdepasswd kdepim-groupware kdepim-kresources kdepim-runtime kdepim-runtime-data kdepim-runtime-libs4 kdepim-strigi-plugins kdepim-wizards kdepimlibs-data kdepimlibs5 kdesudo kdm kfind khelpcenter4 kipi-plugins klipper kmag kmail kmix kmousetool knotes konq-plugins konq-plugins-l10n konqueror konqueror-nsplugins konqueror-plugin-searchbar konqueror-plugins konsole kontact kopete korganizer kpackagekit kppp krdc krfb ksnapshot ksysguard ksysguardd ksystemlog ktimetracker ktorrent ktorrent-data kubuntu-artwork-usplash kubuntu-default-settings kubuntu-desktop kubuntu-docs kubuntu-firefox-installer kubuntu-konqueror-shortcuts kvkbd kwalletmanager kwin-style-qtcurve language-selector-qt libakonadiprivate1 libao2 libaudio2 libboost-program-options1.38.0 libclucene0ldbl libcolamd2.7.1 libepub0 libexiv2-5 libfftw3-3 libflac++6 libgpod-common libgpod4 libhyphen0 libical0 libindicate-qt0 libjpeg-progs libk3b6 libkabcommon4 libkcddb4 libkdcraw7 libkdecorations4 libkdepim4 libkexiv2-7 libkipi6 libkleo4 libknotificationitem1 libkonq5 libkonq5-templates libkonqsidebarplugin4 libkontactinterfaces4 libkopete4 libkorundum4-ruby1.8 libkpgp4 libksane0 libksieve4 libkwineffects1 liblancelot0 liblastfm0 liblzma0 libmimelib4 libmodplug0c2 libmpcdec3 libmsn0.1 libmtp8 libmusicbrainz4c2a libmysqlclient16 libneon27-gnutls libokularcore1 libpackagekit-glib11 libpackagekit-qt11 libplasma3 libpolkit-qt0 libpoppler-qt4-3 libpq5 libqca2 libqca2-plugin-ossl libqimageblitz4 libqscintilla2-5 libqt4-assistant libqt4-dbus libqt4-designer libqt4-help libqt4-network libqt4-opengl libqt4-phonon libqt4-qt3support libqt4-ruby1.8 libqt4-script libqt4-scripttools libqt4-sql libqt4-sql-mysql libqt4-sql-sqlite libqt4-svg libqt4-test libqt4-webkit libqt4-xml libqt4-xmlpatterns libqtcore4 libqtgui4 libqtscript4-core libqtscript4-gui libqtscript4-network libqtscript4-sql libqtscript4-uitools libqtscript4-xml libraptor1 librasqal1 librdf0 libruby1.8 libsmokekde4-2 libsmokeqt4-2 libsoprano4 libstlport4.6ldbl libstreamanalyzer0 libstreams0 libstrigiqtdbusclient0 libtag-extras1 libtidy-0.99-0 libvncserver0 libxcb-shape0 libxcb-shm0 libxcb-xv0 libxine1 libxine1-bin libxine1-console libxine1-misc-plugins libxine1-x libzip1 lp-solve mysql-common mysql-server-core-5.1 okular okular-extra-backends openoffice.org-base-core openoffice.org-calc openoffice.org-common openoffice.org-core openoffice.org-draw openoffice.org-emailmerge openoffice.org-impress openoffice.org-kde openoffice.org-math openoffice.org-style-galaxy openoffice.org-style-oxygen openoffice.org-writer oxygen-cursor-theme packagekit packagekit-backend-apt phonon-backend-xine pinentry-gtk2 pinentry-qt4 plasma-dataengines-addons plasma-dataengines-workspace plasma-scriptengine-python plasma-widget-facebook plasma-widget-folderview plasma-widget-googlecalendar plasma-widget-indicatordisplay plasma-widget-kimpanel plasma-widget-kubuntu-qa-feedback plasma-widget-lancelot plasma-widget-networkmanagement plasma-widget-quickaccess plasma-widgets-addons plasma-widgets-workspace printer-applet python-kde4 python-packagekit python-qt4 python-qt4-dbus python-sip4 python-uno quassel quassel-data raptor-utils rdesktop redland-utils ruby ruby1.8 software-properties-kde soprano-daemon speedcrunch system-config-printer-kde systemsettings uno-libs3 update-manager-kde update-notifier-kde ure usb-creator-kde userconfig xfonts-mathml
To które podałeś nie zadziała.
Dokładnie, w poprzednim poście zapomniałem napisać, że tamto rozwiązanie, które podał Łukasz14 tyczy się KDE3 a nie KDE4 
Pozdrawiam!