尝试从C ++ Linux执行命令行代码 [英] Try to execute command line codes from c++ linux

问题描述

我尝试了以下代码，以便通过c ++代码与命令行进行通信。

I tried the following code, to communicate with the command line from c++ code.

#include<iostream>
#include<cv.h>

int main()
{
    system("gnome-terminal");
    system("cd");
}

gnome-terminal命令执行得很好。我关闭终端后，当期望CD执行时，却没有发生。您能帮我指出原因吗？谢谢。我期待该函数使cmd进入主目录
，但事实并非如此。在linux中工作

The gnome-terminal command is executing fine. After I close the terminal, when am expecting the cd to execute, however, is not happening. Could you please help me and point out the reason? Thanks. I was expecting the function to make the cmd go down to the home directory , but it did not. am working in linux

即使删除gnome，我也尝试过。简单的CD无法正常工作。我在做rong>吗？

I tried it even by removing gnome. simple cd is not working. am I doing something rong>?

如果我尝试ls，它似乎工作正常！

If I try ls, it seems to be working fine!

我的主要目的是打开一个新终端，并通过打开新终端的当前程序在该新终端上执行命令。

My main aim is to open a new terminal, and execute commands on that new terminal through the present program that opened the new terminal. Could you please tell me how I can achieve this??

推荐答案

如果您要运行程序并等待其完成，可以请您告诉我如何实现此目标？在执行下一行之前，请查看以下页面和示例代码： http://www.thegeekstuff.com/2012/03/c-process-control-functions/

If you want to run a program and wait for it to finish before executing next line, take a look at this page and example code here: http://www.thegeekstuff.com/2012/03/c-process-control-functions/

但是如果您要运行gnome-terminal并在新创建的窗口中执行命令，请执行以下操作：

But if you want to run gnome-terminal and execute a command in newly created window, do this:

system("gnome-terminal -x sh -c 'cd /tmp ; ls -la'");

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