Home, Library, and file paths

Your home folder contains Desktop, Documents, Downloads, Movies, Music, and Pictures. In a shell, its shortcut is ~.

Open Terminal and compare these paths:

printf '%s\n' "$HOME"
pwd

$HOME contains the full home path. ~ is shell syntax that expands to it in an unquoted command. A path beginning with / starts at the filesystem root; a path without / is relative to the current directory.

macOS has several Library folders

• ~/Library contains settings, caches, containers, and data for your account.
• /Library contains resources shared by users on the Mac.
• /System/Library belongs to macOS and is protected.

These folders are not interchangeable. Deleting a preference under your user Library can reset one app. Changing a shared or system location can affect every account or fail because macOS protects it.

Do not use a Library folder for your own documents. Store personal files in your home, Documents, or another intentional location.

Open an exact path in Finder

Choose Go → Go to Folder or press Command-Shift-G, then enter a path such as:

~/Library/Application Support

This is safer than clicking through similarly named folders. Before moving or deleting application data, quit the app, confirm the path, and keep a recoverable copy.

Try this: open your home folder and user Library in Finder. Explain why ~/Library and /Library can contain folders with the same application name but different scopes.