run method before rails

  1. Open your text editor or IDE and create a new file with a .rb extension (e.g., myfile.rb).
  2. Start by defining a class using the class keyword, followed by the name of the class, and the keyword end to close the class definition. For example, class MyClass end.
  3. Inside the class, define a method using the def keyword, followed by the name of the method, and the keyword end to close the method definition. For example, def my_method end.
  4. Write the code that you want to execute inside the method body. This can be any valid Ruby code, such as variable assignments, arithmetic operations, or function calls.
  5. To run the method, you need to create an instance of the class using the new keyword, followed by the name of the class and parentheses. For example, my_instance = MyClass.new.
  6. Call the method on the instance using the dot operator, followed by the name of the method and parentheses. For example, my_instance.my_method().
  7. Save the file and navigate to the directory where the file is located using the command line interface.
  8. Run the Ruby file by typing ruby followed by the name of the file. For example, ruby myfile.rb.
  9. The code inside the method will be executed, and any output or side effects will be displayed in the terminal.

Note: Before running the Ruby file, ensure that you have Ruby installed on your system and that it is properly configured. Also, make sure you are in the correct directory where the file is located.