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Linux系统编程（再论execve）

前言本篇文章我们继续来研究一下execve这个系统调用，上篇文章已经讲解了前两个参数的意义了，那么这篇文章就来讲解一下第三个参数的具体含义。一、execve的第三个参数execve函数的第三个参数 envp 是一个字符串数组，用于传递给新程序的环境变量。环境变量是操作系统提供给程序的一组全局变量，用...

Linux系统编程第六节——进程的替换（execl、exelp、execle、execv、execvp、execve）

本节的内容很简单，就是研究一下进程替换的有关内容即可。也不存在什么导图了，因为就这一个知识点。先说一下什么叫进程替换。说白了，就是一个进程还没有运行完，被掉包了，被换掉了，换成了执行另外一个进程里的内容。这就是进程的替换。它是用函数来完成的。实际上，我们把函数和用法介绍给大家之后，大家...

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更新时间 2024-05-05 12:54:47

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