title: How do I can write a program where I can add information just like commands in Ubuntu (ex: program -u "Hello World")
body: <p>I am interested in writing a program in C or Python and add information to my software just like in command line, maybe I'm not explaining so good but what I want looks like this: </p>
  
  <p>Ex: myProgram -u "Hello World" </p>
  
  <p>Then after pressing enter to show my message on screen </p>