(C++) RunOtherProgram

 

If you want your program to run another program and use that program's output. The code below executes the MS-DOS command 'dir' (similar to Linux 'ls') and puts the output of this command in a std::vector. Then it displays the output on screen.

 

Assumes you have already declared the FileExists and FileToVector functions.

 

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#include <cassert> #include <cstdlib> #include <fstream> #include <iostream> #include <string> #include <vector> int main() {   //From http://www.richelbilderbeek.nl/CppRunOtherProgram.htm   //Silenty executes 'dir' and writes the output to the file "temp.txt"   std::system("dir > temp.txt");   //Read "temp.txt" in a std::vector<std::string>   const std::vector<std::string> file(FileToVector("temp.txt"));   //Display the file   typedef std::vector<std::string>::const_iterator Iterator;   for (Iterator i = file.begin(); i!=file.end(); ++i)   {     std::cout << *i << std::endl;   } }