Mini shell


#include 
#include 
#include   // For system()

using namespace std;

int main() {
    string command;

    cout << "Mini Shell (type 'exit' to quit)" << endl;

    while (true) {
        cout << "> ";  // Shell prompt
        getline(cin, command);

        if (command == "exit") {
            break;
        }

        // Execute the command
        int ret = system(command.c_str());

        if (ret == -1) {
            cout << "Failed to execute command." << endl;
        }
    }

    cout << "Exiting mini shell. Bye!" << endl;
    return 0;
}


Mini Shell (type 'exit' to quit)
> echo Hello, world!
Hello, world!
> dir
 Volume in drive C has no label.
 Volume Serial Number is XXXX-XXXX

 Directory of C:\Users\YourUser

07/07/2025  03:45 PM

          .
07/07/2025  03:45 PM

          ..
07/06/2025  10:15 AM             1,234 example.txt
               1 File(s)          1,234 bytes
               2 Dir(s)  100,000,000,000 bytes free
> invalidcommand
'/bin/sh: invalidcommand: command not found'  (on Unix)
'or message like "invalidcommand" is not recognized...'  (on Windows)
> exit
Exiting mini shell. Bye!