当apt-get install并删除python 3.5.0时，Ubuntu损坏了
我正在使用新安装的Ubuntu 15.04，因为我想安装较新版本的Python。 所以，在终端我输入了这个。
sudo apt-get install python 3.5.0 它下载并安装了一些东西。 之后，当我在终端上输入python3 ，它打开了版本3.4.3而不是3.5.0。
虽然它没有安装我想要的版本但我输入了这个
sudo apt-get remove python 3.5.0
完成后我发现Ubuntu软件中心已经消失，当我重新启动操作系统时，Ubuntu的启动器和菜单栏消失了，但桌面上的文件是可见且可打开的。 但是ctrl + alt + t没有打开终端。
那么，这里出了什么问题？
因为bash使用空格将命令行划分为参数（读取man bash ），你真的做到了：
sudo "apt-get" "remove" "python" "3.5.0"
也就是说，删除两个包“python”和“3.5.0”。 许多软件包（见下面的列表）依赖于python ，没有它就无法工作。 因此，如果要删除python ，还必须删除（请参阅列表）。
请阅读man apt-get ，并了解命令，尤其是使用sudo ，然后再执行它们。
如果你不理解命令，其他人可以告诉你（用不明原因的计算机术语）“瞄准脚步。火！”，而你，不理解，会这样做。 很多人都这样做。
当我在一个bash中启动命令sudo apt-get remove python 3.5.0我的15.04系统上的sudo apt-get remove python 3.5.0时（不，不是真的，我使用了sudo -s apt-get remove python 3.5.0 ），这就是结果。 换句话说，您的系统无法使用。 我说，如果你重新安装并阅读它 ，你会更快。
The following packages will be REMOVED: aisleriot apt-xapian-index apturl arronax arronax-base arronax-nautilus asymptote atom bzr bzr-builddeb calibre calibre-bin cdbs colortest-python cython deja-dup deja-dup-backend-cloudfiles deja-dup-backend-gvfs deja-dup-backend-s3 diffuse dput dropbox duplicity elyxer gcalcli gcj-4.9-jre-lib gconf2 gdebi gdm gedit gedit-latex-plugin gimp gimp-gmic gimp-gutenprint gimp-plugin-registry gir1.2-gda-5.0 gir1.2-ibus-1.0 git-buildpackage gksu gnome-control-center gnome-doc-utils gnome-exe-thumbnailer gnome-pkg-tools gnome-shell gnome-shell-extensions gnome-tweak-tool gnome-user-share gobject-introspection gtk-doc-tools guake gufw gvfs-backends gvfs-backends-goa gyp ibus ibus-pinyin ibus-table ibus-unikey inkscape iotop ipython ipython-qtconsole itstool jobs-admin jobservice libappstream-glib-dev libatk-bridge2.0-dev libatk1.0-dev libatkmm-1.6-dev libatspi2.0-dev libavahi-glib-dev libbonobo2-dev libbonoboui2-0 libbonoboui2-dev libboost-all-dev libboost-mpi-python-dev libboost-mpi-python1.55-dev libboost-mpi-python1.55.0 libboost-python-dev libboost-python1.55-dev libcairo2-dev libcairomm-1.0-dev libcanberra-gtk3-dev libclutter-1.0-dev libclutter-gtk-1.0-dev libcogl-dev libcogl-pango-dev libcogl-path-dev libcv-dev libcvaux-dev libdbus-glib-1-dev libdbusmenu-glib-dev libdbusmenu-gtk3-dev libdee-dev libenchant-dev libgail-dev libgcj-common libgcj15 libgconf2-dev libgda-5.0-4 libgda-5.0-bin libgda-5.0-common libgda-5.0-dev libgda-5.0-postgres libgdamm-5.0-13 libgdk-pixbuf2.0-dev libgee-0.8-dev libghc-gconf-dev libghc-glib-dev libgirepository1.0-dev libgksu2-0 libglade2-dev libglib2.0-dev libglibmm-2.4-dev libgnome-keyring-dev libgnome-vfs2.0-cil libgnome2-0 libgnome2-bin libgnome2-common libgnome2-dev libgnome2.24-cil libgnomecanvas2-dev libgnomeui-0 libgnomeui-dev libgnomevfs2-0 libgnomevfs2-common libgnomevfs2-dev libgnomevfs2-extra libgstreamer-plugins-base0.10-dev libgstreamer0.10-dev libgtk-3-dev libgtk2.0-dev libgtkmm-2.4-dev libgtkmm-3.0-dev libgtksourceview-3.0-dev libgudev-1.0-dev libhighgui-dev libibus-1.0-dev libidl-dev libindicate-dev libjson-glib-dev libmagick++-6.q16-dev libmagick++-dev libmagickcore-6.q16-dev libmagickwand-6.q16-dev libmagickwand-dev libmx-dev libnotify-dev libopencv-contrib-dev libopencv-dev libopencv-highgui-dev libopencv-legacy-dev libopencv-objdetect-dev libopencv-ocl-dev libopencv-superres-dev libopencv-videostab-dev liborbit2-dev libpackagekit-glib2-dev libpango1.0-dev libpangomm-1.4-dev libpeas-dev libpulse-dev libpurple-bin libreoffice-gnome librsvg2-dev libsdl1.2-dev libsdl2-dev libsmbclient libsoup2.4-dev libspice-client-glib-2.0-dev libspice-client-gtk-2.0-dev libspice-server-dev libunity-dev libwebkitgtk-3.0-dev libzeitgeist-2.0-dev lilypond-data lyx lyx-common meld mercurial mercurial-common monodevelop morituri mplayer2 nautilus-share ndiff node-gyp nodejs-dev npm nut-monitor ocrfeeder oneconf oneconf-common openshot pdftk picard pyrenamer python 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