使用 cin 从 C++ 中命名一个 tarball

Question

这是我目前的代码，我很难过。是的，我对 C++ 有点陌生

#include <iostream>
#include <string>

int main()
{
    using std::string;
    using std::cin;
    using std::cout;
    string projectname;

    std::cout << "Enter your project folders name: ";
    std::cin >> projectname;

    // Idea is to call tar, gzip and zip

    // Create the tarball from using cin for file title
    system("tar -cvf projectname.tar");  projectname;

    // using cin gzip the tarball
    system("gzip projectname.tar");

    // then call md5sum and sha1sum to get the hash for each
    system("md5sum projectname.tar.gz > gz.log");

    system("pause");
    return 0;
}

这不起作用，我需要它从 cin 获取文件变量

提前致谢。

Answer 1

您需要添加将变量 projectname 插入到相关位置的命令的单独部分，如下所示：

#include <iostream>
#include <string>

int main()
{
    using std::string;
    using std::cin;
    using std::cout;
    string projectname;

    std::cout << "Enter your project folders name: ";
    std::cin >> projectname;

    // Idea is to call tar, gzip and zip

    // add the different parts into a string
    // then convert to a char const* using c_str()
    system(("tar -cvf '" + projectname + ".tar' '" + projectname + "'").c_str());

    // Same thing broken down

    string command = "gzip '";
    command += projectname;
    command += ".tar'";

    system(command.c_str());

    // etc....
}