Ubuntu apt能否自动删除系统文件？

我试图在我的Ubuntu 16.04.4 LTS上安装Python 3，在使用

apt

时，我发现：

The following packages were automatically installed and are no longer required:
  cabextract gcc-5-base:i386 gstreamer1.0-plugins-base:i386 libasn1-8-heimdal:i386 libasound2:i386 libasound2-plugins:i386 libasyncns0:i386
  libavahi-client3:i386 libavahi-common-data:i386 libavahi-common3:i386 libblosc1 libboost-filesystem1.58.0:i386 libboost-system1.58.0:i386
  libboost-wave1.58.0 libbsd0:i386 libcapi20-3 libcapi20-3:i386 libcapnp-0.5.3:i386 libcdparanoia0:i386 libcups2:i386 libdbus-1-3:i386
  libdrm-amdgpu1:i386 libdrm-intel1:i386 libdrm-nouveau2:i386 libdrm-radeon1:i386 libdrm2:i386 libedit2:i386 libegl1-mesa:i386 libelf1:i386
  libexif12:i386 libexpat1:i386 libffi6:i386 libflac8:i386 libfontconfig1:i386 libfreetype6:i386 libgbm1:i386 libgd3:i386
  libgl1-mesa-dri:i386 libgl1-mesa-glx:i386 libglapi-mesa:i386 libglib2.0-0:i386 libglu1-mesa:i386 libgmp10:i386 libgnutls30:i386
  libgphoto2-6:i386 libgphoto2-port12:i386 libgsm1:i386 libgssapi-krb5-2:i386 libgssapi3-heimdal:i386 libgstreamer-plugins-base1.0-0:i386
  libgstreamer1.0-0:i386 libhcrypto4-heimdal:i386 libheimbase1-heimdal:i386 libheimntlm0-heimdal:i386 libhogweed4:i386
  libhx509-5-heimdal:i386 libicu55:i386 libidn11:i386 libieee1284-3:i386 libjack-jackd2-0:i386 libjbig0:i386 libjpeg-turbo8:i386
  libjpeg8:i386 libjson-c2:i386 libk5crypto3:i386 libkeyutils1:i386 libkrb5-26-heimdal:i386 libkrb5-3:i386 libkrb5support0:i386
  liblcms2-2:i386 libllvm6.0:i386 liblog4cplus-1.1-9 libltdl7:i386 libmirclient9:i386 libmircommon7:i386 libmircore1:i386
  libmirprotobuf3:i386 libmpg123-0:i386 libmspack0 libnettle6:i386 libodbc1 libodbc1:i386 libogg0:i386 libopenal1:i386 libopenimageio1.7
  libopenshadinglanguage1.8 libopensubdiv libopenvdb3.1 libopus0:i386 liborc-0.4-0:i386 libosmesa6 libosmesa6:i386 libp11-kit0:i386
  libpcap0.8:i386 libpciaccess0:i386 libpng12-0:i386 libprotobuf-lite9v5:i386 libpulse0:i386 libpython-all-dev libpython-dev libpython2.7-dev
  libpython3.6 libpython3.6-minimal libpython3.6-stdlib libroken18-heimdal:i386 libsamplerate0:i386 libsane:i386 libsasl2-modules:i386
  libsdl2-2.0-0 libsdl2-2.0-0:i386 libsensors4:i386 libsndfile1:i386 libsndio6.1 libsndio6.1:i386 libspeexdsp1:i386 libsqlite3-0:i386
  libssl1.0.0:i386 libstdc++6:i386 libtasn1-6:i386 libtheora0:i386 libtiff5:i386 libtxc-dxtn-s2tc0:i386 libusb-1.0-0:i386 libv4l-0:i386
  libv4lconvert0:i386 libvisual-0.4-0:i386 libvorbis0a:i386 libvorbisenc2:i386 libvpx3:i386 libvulkan1 libvulkan1:i386
  libwayland-client0:i386 libwayland-cursor0:i386 libwayland-egl1-mesa:i386 libwayland-server0:i386 libwind0-heimdal:i386 libwrap0:i386
  libx11-6:i386 libx11-xcb1:i386 libxau6:i386 libxcb-dri2-0:i386 libxcb-dri3-0:i386 libxcb-glx0:i386 libxcb-present0:i386 libxcb-sync1:i386
  libxcb-xfixes0:i386 libxcb1:i386 libxcomposite1:i386 libxcursor1:i386 libxdamage1:i386 libxdmcp6:i386 libxext6:i386 libxfixes3:i386
  libxi6:i386 libxinerama1:i386 libxkbcommon0:i386 libxml2:i386 libxpm4:i386 libxrandr2:i386 libxrender1:i386 libxshmfence1:i386
  libxslt1.1:i386 libxss1:i386 libxxf86vm1:i386 linux-headers-4.13.0-45 linux-headers-4.13.0-45-generic linux-headers-4.15.0-24
  linux-headers-4.15.0-24-generic linux-headers-4.15.0-29 linux-headers-4.15.0-29-generic linux-image-4.13.0-45-generic
  linux-image-4.15.0-24-generic linux-image-4.15.0-29-generic linux-image-extra-4.13.0-45-generic linux-modules-4.15.0-24-generic
  linux-modules-4.15.0-29-generic linux-modules-extra-4.15.0-24-generic linux-modules-extra-4.15.0-29-generic p7zip python-all python-all-dev
  python-dev python-wheel python2.7-dev python3-numpy
Use 'sudo apt autoremove' to remove them.

---

我可以做

sudo-apt-autoremove

，但我担心像

linux-image-4.15.0-29-generic

这样的软件包很重要，删除它之后，我的Ubuntu将被破坏。谁能说进行自动删除安全吗？

否。apt get autoremove只会删除未被任何已安装软件包使用的文件。由于运行系统所需的所有软件包都已安装，apt get autoremove不会删除任何重要的系统文件

如果您需要apt get autoremove中列出的某个软件包，则始终可以使用以下方式手动安装：

apt-get install linux-image-4.15-0.29-generic

然后，当您运行自动删除时，包将不再在列表中

我注意到有问题的文件中有一个内核文件。如果您想知道当前是否正在使用该特定版本的内核，请使用：

uname -a

---

它有可能移除你不想移除的东西。它刚刚从我的安装中删除了所有内容。甚至是格迪特

apt autoremove

只会删除不再需要的包。但是，您始终可以直接删除某个系统或实用程序包所依赖的程序包。在这种情况下，

autoremove

将像裂变反应链一样工作，并逐个删除所有内容。这发生在我身上。

但是如果

autoremove

会损害

apt-get

，那该怎么办？不应该是这样的，apt-get是一个已安装的包，因此任何依赖项都不会是“autoremove”dso autoremove无法删除正在使用的软件包？autoremove将遍历目录并删除未直接安装的以及已安装的软件包不需要的任何剩余软件包。所以从字面上说，它只是清理你从未要求过的东西。如果你安装apache，它会安装很多库。如果您删除apache，所有这些库都将被保留，直到您运行autoremove。唯一需要注意的是，如果您开始使用其中一个依赖项，比如说“Python”，但从未亲自安装过它；然后它将被移除。哦，它是安全的：）