如何从C++程序运行bash脚本

要从C++程序运行bash脚本，您可以使用以下方法：

使用system()函数：

#include<iostream>
#include <cstdlib>

int main() {
    std::cout << "Executing bash script..."<< std::endl;
    int result = system("/path/to/your/script.sh");
    if (result == 0) {
        std::cout << "Script executed successfully."<< std::endl;
    } else {
        std::cout << "Script execution failed."<< std::endl;
    }
    return 0;
}

使用popen()和pclose()函数：

#include<iostream>
#include <cstdio>
#include <cstdlib>

int main() {
    std::cout << "Executing bash script..."<< std::endl;
    FILE* pipe = popen("/path/to/your/script.sh", "r");
    if (!pipe) {
        std::cout << "Script execution failed."<< std::endl;
        return 1;
    }
    char buffer[128];
    while (fgets(buffer, sizeof(buffer), pipe) != NULL) {
        std::cout<< buffer;
    }
    int result = pclose(pipe);
    if (result == 0) {
        std::cout << "Script executed successfully."<< std::endl;
    } else {
        std::cout << "Script execution failed."<< std::endl;
    }
    return 0;
}

请注意，这些方法都需要在C++程序中包含相应的头文件，并且需要确保您的系统上已经安装了bash。此外，您需要确保您的bash脚本具有执行权限。