Try-It-Yourself: Accessing Directories at the Command Prompt
Tasks to be performed:
  1. Locate the application titled "gcc" using whereis command.
  2. Display the present working directory.
  3. Change the current working directory to /usr/bin directory.
  4. Change the current working directory to $HOME directory.
  5. Move to the parent directory.
  6. Go to the previous directory by the shortcut method i.e using '-' operator.
  7. Display the present working directory.