我尝试在我的 Ubuntu 16.04 机器上同时安装两个不同版本的 Emacs（24 和 25）。现在我想删除 Emacs 25，因为它在安装过程中出错了（另话长说）。
当我运行命令时，我发现它要删除很多依赖项。我对这些包不太了解。它们有多重要？它们都是由于 Emacs 安装引起的吗？我不记得 Emacs 需要 500MB 的空间。通常大约是 90MB。
user@user-desktop:/$ sudo apt-get purge --auto-remove emacs25
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
audacity-data* emacs-snapshot-common* emacs25* gcc-5-base:i386*
gir1.2-keybinder-3.0* libasound2:i386* libasyncns0:i386* libchromaprint0*
libcrypto++9v5* libdbus-1-3:i386* libechonest2.3* libfftw3-single3:i386*
libflac++6v5* libflac8:i386* libftgl2* libgomp1:i386* libice6:i386*
libid3tag0* libjack-jackd2-0:i386* libjson-c2:i386* libkeybinder-3.0-0*
liblastfm1* liblilv-0-0* libllvm4.0* libllvm5.0* libltdl7:i386*
libogg0:i386* liborc-0.4-0:i386* libportsmf0v5* libprojectm2v5* libqjson0*
libqmi-glib1* libqpdf17* libqxt-core0* libqxt-gui0* libsamplerate0:i386*
libsbsms10* libserd-0-0* libsm6:i386* libsndfile1:i386* libsodium18*
libsord-0-0* libsoundtouch1* libspeexdsp1:i386* libsratom-0-0*
libstdc++6:i386* libsuil-0-0* libsystemd0:i386* libtdb1:i386* libudev1:i386*
libvamp-hostsdk3v5* libvorbis0a:i386* libvorbisenc2:i386*
libwebrtc-audio-processing-0:i386* libwrap0:i386* libwxbase3.0-0v5*
libwxgtk3.0-0v5* libx11-6:i386* libx11-xcb1:i386* libxau6:i386*
libxcb1:i386* libxdmcp6:i386* libxext6:i386* libxtst6:i386*
linux-headers-4.4.0-128* linux-headers-4.4.0-128-generic*
linux-image-4.4.0-128-generic* linux-image-extra-4.4.0-128-generic*
projectm-data* ttf-dejavu-core*
0 upgraded, 0 newly installed, 70 to remove and 130 not upgraded.
1 not fully installed or removed.
After this operation, 561 MB disk space will be freed.