ubuntu 22.04配置

安装 vim

sudo apt-get install vim

更换国内源

用下列内容替换/etc/apt/sources.list中原有内容：

# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiverse

# 预发布软件源，不建议启用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse

依次执行下列命令

sudo apt-get update
sudo apt-get upgrade

安装 build-essential

sudo apt install build-essential

开启 openssh-server

安装 openssh-server

sudo apt install openssh-server -y

启用 openssh-server

sudo systemctl enable --now ssh

检查 openssh-server 运行状态

sudo systemctl status ssh

配置 UFW 防火墙（默认不开启）

启用22端口
sudo ufw allow 22/tcp

安装 emacs

sudo apt install emacs

安装 cmake

sudo apt install cmake

安装 git

sudo apt install git

安装 global/gtags

sudo apt install global
emacs 中运行 M-x package-install RET ggtags RET

安装 dos2unix/unix2dos

sudo apt install tofrodos

安装 clang

sudo apt install llvm clang
在终端运行 clang --version 获知 clang 版本14.0.0
sudo apt install libclang-14-dev
不安装 libcang-14-dev，在有的编译依赖中，会报缺失 libclangBasic.a 文件