如何使用C语言代码在Linux中设置路径环境变量 [英] How to set path environment variable in linux in C language code

问题描述

我想通过C程序在bash中设置路径环境变量. 因此，我使用"setenv"功能进行了编码，但这并不是解决问题的答案.

I want to set a path environment variable in bash by C program. So I coded using 'setenv' function, But it was not the answer to solve.

有人可以建议另一种方法来解决C编程问题吗?

Could anybody suggest another way to solve this problem in C programming?

我以为其他解决方案是程序先读取配置文件，然后进行修改并保存，但是实际上，当我打开该文件时，没有关于PATH变量的字符串.

I thought the other solution that the program read the profile file, then modify and save, but actually when I opened this file there's no string I wanted about PATH variable.

推荐答案

您可以使用setenv()和putenv()设置环境变量.但是这些将仅针对给定的程序设置.您无法为外壳程序或其父进程设置环境变量.

You can use setenv() and putenv() to set environment variables. But these will only be set for the given program. You cannot set environment variables for the shell or its parent process.

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