1. 更新软件到最新版本

1.1 CMAKE [U20]

参考：https://apt.kitware.com/

# 1. 更新基础库
sudo apt-get update# 2. 安装可能需要的工具
sudo apt-get install ca-certificates gpg wget# 3. 获取签名
wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | gpg --dearmor - | sudo tee /usr/share/keyrings/kitware-archive-keyring.gpg >/dev/null# 4. 添加正式版仓库与更新
echo 'deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ focal main' | sudo tee /etc/apt/sources.list.d/kitware.list >/dev/null
sudo apt-get update
sudo apt-get upgrade cmake# 5. 签名同步
sudo rm /usr/share/keyrings/kitware-archive-keyring.gpg
sudo apt-get install kitware-archive-keyring# 6. 【可选操作】添加开发板仓库与更新
echo 'deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ focal-rc main' | sudo tee -a /etc/apt/sources.list.d/kitware.list >/dev/null
sudo apt-get update
sudo apt-get upgrade cmake

1.2 GIT

sudo add-apt-repository ppa:git-core/ppa
sudo apt update
sudo apt upgrade git

1.3 WIRESHARK

sudo apt-add-repository ppa:wireshark-dev/stable
sudo apt-get update
sudo apt upgrade wireshark# 普通用于运行配置
sudo dpkg-reconfigure wireshark-common

1.4 LLVM

参考：https://apt.llvm.org/

wget https://apt.llvm.org/llvm.sh
chmod +x llvm.sh
sudo ./llvm.sh 17 all

2. 设置代理

2.1 APT

• 添加配置

  # 1. 打开apt.conf配置文件
  sudo vim /etc/apt/apt.conf
  # 2. 在配置文件中添加以下内容
  Acquire::http::Proxy  "http://127.0.0.1:7890";
  Acquire::https::Proxy "http://127.0.0.1:7890";
  # 3. 保存退出
  

• 命令别名

  # 1. 打开配置文件
  vim ~/.bashrc# 2. 设置命令别名
  alias apt_proxy_on=" sudo sed -i 's/^#//g' /etc/apt/apt.conf"  # 开启
  alias apt_proxy_off="sudo sed -i 's/^/#/g' /etc/apt/apt.conf"  # 关闭
  alias apt_proxy_cat="sudo cat              /etc/apt/apt.conf"  # 查看# 3. 保存退出
  # 4. 更新
  source ~/.bashrc# 5. 别名使用
  apt_proxy_on
  apt_proxy_off
  apt_proxy_cat
  

2.2 GIT

# 1. 打开配置文件
vim ~/.bashrc# 2. 设置命令别名
alias git_proxy_on="git config --global http.proxy 127.0.0.1:7890 && git config --global https.proxy 127.0.0.1:7890" # 开启
alias git_proxy_off="git config --global --unset http.proxy && git config --global --unset https.proxy" # 关闭
alias git_proxy_cat="git config --global --get http.proxy && git config --global --get https.proxy" # 查看# 3. 保存退出
# 4. 更新
source ~/.bashrc# 5. 别名使用
apt_proxy_on
apt_proxy_off
apt_proxy_cat

2.3 WGET

wget -e "http_proxy=http://127.0.0.1:7890"  http://...
wget -e "http_proxy=https://127.0.0.1:7890" https://...

2.4 PIP

sudo pip3 --proxy http://127.0.0.1:7890/ install pip -U
sudo pip3 --proxy http://127.0.0.1:7890/ install meson ninja