如何从子进程为父进程设置环境变量? [英] how to set environment variable for parent process from child process?

问题描述

如何为子流程中的父流程设置环境变量?

how to set environment variable for parent process from child process?

例如: 我有家长和孩子程序. CHILD进程继承自名为TMP_VARIABLE = 777的PARENT进程环境变量.如何在CHILD进程中将TMP_VARIABLE的值更改为999，使其值对于TENT_VARIABLE = 999对PARENT进程可见?

For example: I have PARENT and CHILD processes. CHILD process inherited from PARENT process environment variable called TMP_VARIABLE=777. How can I change the value of TMP_VARIABLE in the CHILD process to 999 that it's value becomes visible to PARENT process as TMP_VARIABLE=999?

推荐答案

您不能，除非进程明确地进行通信(IPC，套接字等)，并且一个进程明确地告诉另一个进程修改其自己的环境.

You can't, unless the processes explicitly communicate (IPC, sockets etc.) and one explicitly tells the other to modify its own environment.

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