bash 如何在 node.js 中导出环境变量
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How to export env variable in node.js
提问by exebook
I like my node.jsso much, that I want to use it is my bashstart up script ~/.bashrc, but I do not know how to export variable.
我非常喜欢我node.js的，我想用它作为我的bash启动脚本~/.bashrc，但我不知道如何导出变量。
Currently I have to use this approach:
目前我必须使用这种方法：
export PS1=`node ~/PS1.js`
export PS2=`node ~/PS2.js`
export PATH=`node ~/PATH.js`
instead I want .bashrclook have
相反，我想.bashrc看看有
#!/usr/local/bin/node
//do something, define functions
export_var('PS1', PS1())
export_var('PS2', PS2())
export_var('PATH', generatePATH())
process.env.PATH = somethingdoes not export, only sets for the currently executing process, which is node itself.
process.env.PATH = something不导出，只为当前正在执行的进程设置，也就是节点本身。
采纳答案by delixfe
Node.js will run in an separate process which gets a copy of the environment. You cannot change the environment of you parent process (the one executing .bashrc).
Node.js 将在一个单独的进程中运行，该进程获取环境的副本。您无法更改父进程（执行 .bashrc 的进程）的环境。
But the following question has an answer for you: Can a shell script set environment variables of the calling shell?
但是以下问题可以为您提供答案： shell 脚本可以设置调用 shell 的环境变量吗？
You can write a new script file from within node.js and call it via source.
您可以从 node.js 中编写一个新的脚本文件并通过source.
