Remove some softwares

卸载libreoffices

sudo apt-get remove libreoffice-common

卸载Amazon的链接

sudo apt-get remove unity-webapps-common

卸载一些预装软件

sudo apt-get remove thunderbird totem rhythmbox empathy brasero simple-scan gnome-mahjongg aisleriot gnome-mines cheese transmission-common gnome-orca webbrowser-app gnome-sudoku landscape-client-ui-install

sudo apt-get remove onboard deja-dup

Install tweaks to adjust panel

sudo apt-get install gnome-tweak-tool
sudo apt install gnome-shell-extensions gnome-shell-extension-dash-to-panel gnome-tweaks adwaita-icon-theme-full

chrome

下载Google Chrome最新版
GitHub - haotian-wang/google-access-helper: 谷歌访问助手破解版

add-apt-repository

add/remove

sudo add-apt-repository [--remove]  ppa:xxx/xxx