Ubutu by default keeps system and sensitive files hidden. But there are times when we might need to see them. This is fairly easy.

Ubuntu

1. Move inside the desired directory
2. Press Ctrl+H to toggle the visibility of hidden files and direcotories.

Mac

1. Hold down the Command, Shift and Period keys: cmd + shift + [.]
2. The hidden files and folders on your Mac will then appear partially transparent.
3. Use the same keyboard shortcut to hide.

Windows 10

1. Open File Explorer from the taskbar.
2. Select View > Options > Change folder and search options.
3. Select the View tab and, in Advanced Settings, select Show hidden files, folders, and drives and OK.

Windows 11

1. Open File Explorer from the taskbar.
2. Select View > Show > Hidden items.