./ program --help

Adding help parameters to you console application and other params

I'm using this as a template for my console apps in Linux

//----------------------------------------

#include <iostream>
#include <string> // For std::string
#include <vector> // For std::vector (optional, but good for argument storage)

void printHelpMessage() {
    std::cout << "Usage: myprogram [OPTIONS]" << std::endl;
    std::cout << "Options:" << std::endl;
    std::cout << "  --help, -h    Display this help message" << std::endl;
    std::cout << "  --version, -v Display program version" << std::endl;
    std::cout << "  --input FILE  Specify an input file" << std::endl;
    // Add more options and descriptions as needed
}

int main(int argc, char* argv[]) {
    // Loop through the command-line arguments, starting from argv[1]
    // argv[0] is always the program name itself
    for (int i = 1; i < argc; ++i) {
        std::string arg = argv[i];

        if (arg == "--help" || arg == "-h") {
            printHelpMessage();
            return 0; // Exit after displaying help
        }
        // Add more argument handling here
        else if (arg == "--version" || arg == "-v") {
            std::cout << "My Program Version 1.0" << std::endl;
            return 0;
        }
        else if (arg == "--input") {
            if (i + 1 < argc) { // Check if there's a next argument for the filename
                std::string inputFile = argv[++i];
                std::cout << "Input file specified: " << inputFile << std::endl;
            } else {
                std::cerr << "Error: --input requires a filename." << std::endl;
                return 1; // Indicate error
            }
        }
        else {
            std::cerr << "Unknown argument: " << arg << std::endl;
            std::cerr << "Use --help for usage information." << std::endl;
            return 1; // Indicate error
        }
    }

    // If no specific arguments are handled, or after handling them
    std::cout << "Running main program logic..." << std::endl;
    // Your main program logic goes here

    return 0;
}

//----------------------------------------------

 

Simple timer

Adding cream and sugar adds 15 seconds to the clock.

#include <iostream>
#include <string>
#include <unistd.h>
#include <stdlib.h>
using namespace std;
using std::locale; //::global(std::locale(""));
int main()
{
int i = 10;
cout << "Set timer (seconds).";
cin >> i;
string s = "x";
cout << "Making coffee. Please standby.\n";
sleep(i);
system("aplay -q /home/rick/Music/Sounds/tada.wav");
cout << "Cream and sugar?";
cin >> s;
if(s=="y")
    {
    cout << "okay\n";
    sleep(3);
    cout << "Pouring cream\n";
    sleep(3);
    cout << "Scooping sugar\n";
    sleep(3);
    cout << "clink clink clink clink clink\n";
    sleep(6);
    }
    else
    {
    cout << "black then.\n";
    }
std::cout << "done.\n";
return 0;
}