1. Open your text editor of choice and create a new file.
2. Add the following line at the top of the file: #!/usr/bin/env python
3. Write your Python code in the file, using the correct syntax and indentation.
4. Save the file with a .py extension, such as script.py.
5. Make the file executable by running the following command in your terminal: chmod +x script.py
6. Run the script by typing ./script.py in the terminal.