I have installed g++ in Ubuntu 12.04 from Ubuntu software center to write, c and c++ and to complie, but I am not able to find out where is the software gone after installation, please help me how to find it.

  • What have you tried, exactly? What happens if you open a terminal (Ctrl+Alt+T) and type which g++ or g++ --version? Aug 13 '15 at 22:33
  • g++: fatal error: no input files compilation terminated.
    – riemann
    Aug 14 '15 at 6:03
  • Yes that error comes
    – Marso
    Aug 14 '15 at 6:05
  • That isn't really an error. You have started g++ without a source-code file.
    – A.B.
    Aug 14 '15 at 7:10

Simply start:

dpkg -L g++

to list all installed files for the package g++ or use:

which g++

to show the path for the command g++

Write a "hello world"

  1. Open a sour-code file

    nano helloworld.cpp
  2. Add the code below

    #include <iostream>                                     
    int main(){                                             
        std::cout << "Hello world" << std::endl;
        return 0;                                           
  3. Save the file

  4. Compile

    g++ helloworld.cpp -o helloworld
  5. Start

  • dpkg -L g++ /. /usr /usr/bin /usr/share /usr/share/man /usr/share/man/man1 /usr/share/doc /usr/bin/i686-linux-gnu-g++ /usr/bin/g++ /usr/share/man/man1/i686-linux-gnu-g++.1.gz /usr/share/man/man1/g++.1.gz /usr/share/doc/g++
    – riemann
    Aug 14 '15 at 6:02
  • Yes that error comes
    – Marso
    Aug 14 '15 at 6:06
  • @LaBelleNoiseuse Which error?
    – A.B.
    Aug 14 '15 at 7:10

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