To show hidden files on a Mac using the Terminal, you can follow these steps:

1. Open the Terminal application. You can find it in the "Utilities" folder within the "Applications" folder, or you can use Spotlight search (press Command + Space and type "Terminal").
2. In the Terminal window, type the following command and press Enter:
   arduino

    

   defaults write com.apple.finder AppleShowAllFiles YES

    
3. After running the command, you need to restart the Finder for the changes to take effect. You can do this by holding the Option key and right-clicking on the Finder icon in the Dock, then selecting "Relaunch."

Once the Finder restarts, hidden files and folders should be visible. To hide them again, follow the same steps but use the following Terminal command in step 2:

As for the Commander One app, it provides a user-friendly interface to manage files and folders on macOS. It offers advanced features, including the ability to view hidden files. Once you have Commander One installed, follow these steps to show hidden files:

1. Launch Commander One for mac show hidden files.
2. Navigate to the directory where you want to view hidden files.
3. In the menu bar at the top, click on "View."
4. In the dropdown menu, check the "Show Hidden Files" option. This will enable the display of hidden files and folders.
5. Hidden files and folders should now be visible in Commander One. To hide them again, follow the same steps and uncheck the "Show Hidden Files" option.

Remember that showing or hiding hidden files in either Finder or Commander One does not affect the visibility of hidden files in the other file manager.