出现仓库更新源文件失败解决办法：
一般把报错文件源删除目录一般在 /etc/apt/sources.list.d
cd /etc/apt/sources.list.d
sudo rm -i 报错文件源.list
公钥错误：
NO_PUBKEY 80B70870665AB177 //公钥不存在
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 80B70870665AB177 //更新公钥
sudo apt-get update 更新源文件
sudo apt upgrade 更新系统软件包
sudo apt-get autoclean 清除本地仓库删除缓存垃圾文件
sudo apt-get clean 清除缓存中所有包重装软件前
sudo apt-get remove test 卸载已安装软件test保留配置文件
sudo apt-get purge test 卸载已安装软件test同时卸载配置文件
sudo apt-get autoremove 清除系统因卸载后不必要的依赖
sudo dpkg -i sogoupinyin_版本号_amd64.deb 安装下载路径可安装文件包
sudo apt -f install 缺少相关依赖
sudo apt install ssh
ps -e | grep ssh 查看ssh服务是否启动
/etc/init.d/ssh start 启动ssh路径
Ubuntu 20.04 安装无线网卡驱动。
sudo apt-get install linux-headers-generic build-essential dkms
sudo apt-get install linux-source
sudo apt-get install --reinstall bcmwl-kernel-source
sudo modprobe wl
在Ubuntu使用基于L2TP的VPN设置
添加PPA
sudo apt-get install network-manager-l2tp-gnome
sudo apt-add-repository ppa:seriy-pr/network-manager-l2tp
sudo apt-get install network-manager-l2tp network-manager-l2tp-gnome
刷新软件包缓存
sudo apt-get update
安装network-manager-l2tp
sudo apt-get install network-manager-l2tp-gnome
安装完之后不要忘记运行以下命令
sudo service xl2tpd stop
sudo update-rc.d xl2tpd disable
输入法小鸭：sudo apt-get install fcitx-pinyin
播放器:
sudo apt-get install smplayer
微信在线安装：
安装必要的工具及deepin-wine依赖
sudo apt install wget g++ git #如已安装可自行跳过
git clone “https://gitee.com/wszqkzqk/deepin-wine-for-ubuntu.git”
cd deepin-wine #切换到下载目录
sudo ./install.sh #执行安装
mkdir ./deepintemp
cd ./deepintemp
sudo wget http://packages.deepin.com/deepin/pool/non-free/d/deepin-wine/deepin-wine_2.18-22~rc0_all.deb
sudo wget http://packages.deepin.com/deepin/pool/non-free/d/deepin-wine/deepin-wine32_2.18-22~rc0_i386.deb
sudo wget http://packages.deepin.com/deepin/pool/non-free/d/deepin-wine/deepin-wine32-preloader_2.18-22~rc0_i386.deb
sudo wget http://packages.deepin.com/deepin/pool/non-free/d/deepin-wine-helper/deepin-wine-helper_1.2deepin8_i386.deb
sudo wget http://packages.deepin.com/deepin/pool/non-free/d/deepin-wine-plugin/deepin-wine-plugin_1.0deepin2_amd64.deb
sudo wget http://packages.deepin.com/deepin/pool/non-free/d/deepin-wine-plugin-virtual/deepin-wine-plugin-virtual_1.0deepin3_all.deb
sudo wget http://packages.deepin.com/deepin/pool/non-free/d/deepin-wine-uninstaller/deepin-wine-uninstaller_0.1deepin2_i386.deb
sudo wget http://packages.deepin.com/deepin/pool/non-free/u/udis86/udis86_1.72-2_i386.deb
sudo wget http://packages.deepin.com/deepin/pool/non-free/d/deepin-wine/deepin-fonts-wine_2.18-22~rc0_all.deb
sudo wget http://packages.deepin.com/deepin/pool/non-free/d/deepin-wine/deepin-libwine_2.18-22~rc0_i386.deb
sudo wget https://packages.deepin.com/deepin/pool/main/libj/libjpeg-turbo/libjpeg62-turbo_1.5.1-2_amd64.deb --no-check-certificate
sudo wget https://packages.deepin.com/deepin/pool/main/libj/libjpeg-turbo/libjpeg62-turbo_1.5.1-2_i386.deb --no-check-certificate
echo ‘准备添加32位支持’
sudo dpkg --add-architecture i386
echo ‘添加成功，准备刷新apt缓存信息…’
sudo apt update
echo ‘即将开始安装…’
sudo dpkg -i *.deb
echo ‘安装完成，正在自动安装依赖…’
sudo apt install -fy
echo ‘删除上面已经安装的deb文件’
rm -vfr ./deepintemp
下载地址：http://packages.deepin.com/deepin/pool/non-free/d/deepin.com.wechat/
sudo dpkg -i deepin.com.wechat_2.6.8.65deepin0_i386.deb
WINEPREFIX=~/.deepinwine/Deepin-QQ deepin-wine winecfg
WINEPREFIX=~/.deepinwine/Deepin-WeChat deepin-wine winecfg
sudo apt-get install fonts-droid-fallback ttf-wqy-zenhei ttf-wqy-microhei fonts-arphic-ukai fonts-arphic-uming //中文乱码
Choose installation path: /home/ndc/.local/share/umake/ide/visual-studio-code
sudo add-apt-repository ppa:ubuntu-desktop/ubuntu-make
sudo apt-get update
sudo apt-get install ubuntu-make
安装Vscode：
umake ide visual-studio-code //重启
卸载软件：查找软件名称 sudo dpkg --list
卸载： sudo apt-get --purge remove
$ sudo rm -rf /var/lib/apt/lists/* 在运行命令之前，请再次确认你在最后加入了 *。在命令最后加上 * 很重要。如果你没有添加，它会删除/var/lib/apt/lists/*目录，而且无法恢复。我提醒过你了！
解决办法：将对应的PPA删除掉即可
使用以下命令切换到对应PPA目录：
cd /etc/apt/sources.list.d
删掉对应的ppa文件即可
sudo apt-get install python-setuptools 安装python完整环境
安装docker：
在命令行执行命令 curl -sSL http://acs-public-mirror.oss-cn-hangzhou.aliyuncs.com/docker-engine/intranet | sh
sudo apt-get install docker
执行命令 docker -v 执行完docker -v后能看到版本信息，则表明docker已经安装成功
