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创建时间：2022年4月10日10:11:38
最新更新：2022年4月10日11:43:55

Problem Description：WSL, WSL2 has multiple environment variables that you want to source, how to interactively select them based on if-else in .bashrc and then in bash? instead of using complex instructions every time

核心思路：

  • .bashrc的read读数据
  • .bashrc的echo打印内容
  • .bashrc的if-else语句进行判断

配置

  • 打开.bashrc，我用Notepad++直接开的

    • \\wsl$\Ubuntu-20.04\root\.bashrc约莫在这个路径

  • 在.bashrc最下方添加如下代码，保存，然后打开一个新的bash就好啦

    • 基于if-else实现，就是按对应序号选
    • read envType接受变量输入
    • echo相当于Python的print
    • 需要替换的部分
      • 改成你自己的Geant4安装路径，记得有mnt这个部分记得替换成你自己的Geant4安装路径
      • 改成你自己的ROOT安装路径，记得有mnt这个部分记得替换成你自己的ROOT安装路径
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# 选择你需要的环境变量
echo "=================================================="
echo "Please input the environment you want to choose :"
echo "1. Default: WSL + Python with Jupyter"
echo "2. Geant4"
echo "3. ROOT"
echo "=================================================="
echo "The environment number you want to choose is :"
read envType

echo "=================================================="
echo "Processing ..."
echo "=================================================="
echo "The environment you choose is :"
if ((envType == 1)); then   
  echo "1. default: WSL + Python with Jupyter"

elif ((envType == 2)); then
  echo "2. Geant4"
  source 改成你自己的Geant4安装路径，记得有mnt/install/bin/geant4.sh
  echo "The path is : 改成你自己的Geant4安装路径，记得有mnt/install/bin/geant4.sh"
elif ((envType == 3)); then
  echo "3. ROOT"
  source 改成你自己的ROOT安装路径，记得有mnt/bin/thisroot.sh
  echo "The path is : 改成你自己的ROOT安装路径，记得有mnt/bin/thisroot.sh"
else   
  echo "Type Error !"
fi

echo "=================================================="
echo "Activating ..."
echo "=================================================="
echo "Environment activate succeed !"
echo "=================================================="

效果

  • 如下图，很爽现在

Ref