如何从C获取Linux中当前文件(pwd)的路径? [英] How to get the path to the current file (pwd) in Linux from C?

问题描述

我想知道是否有可能在当前DIR上运行 system("pwd").因此，例如，我们具有以下文件夹结构:

I'd like to know if it is somehow possible to run system("pwd") on the current DIR. So for example let's have this folder structure:

example
 >test
  >>file
 >test2
  >>file3
  >>file4

然后使用 opendir()和 readdir()，我将进入 file3 ，我想使用 system(("pwd")以获得路径 ..../example/test2/file3 .这有可能吗，还是 pwd 始终将路径返回到 main.c ?

And with opendir() and readdir() I'll get to file3, and I want to use system("pwd") to get the path ..../example/test2/file3. Is this somehow possible, or will pwd return the path to main.c all the time?

推荐答案

仅打开和读取目​​录不会更改当前的工作目录.但是，将在程序中更改目录.

Simply opening and reading directories does not change the current working directory. However, changing directory in your program will.

供参考，

#include <unistd.h>
#include <stdio.h>

int main() {
    char cwd[1024];
    chdir("/path/to/change/directory/to");
    getcwd(cwd, sizeof(cwd));
    printf("Current working dir: %s\n", cwd);
}

这篇关于如何从C获取Linux中当前文件(pwd)的路径?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！