CosmilmacOS file management, answered honestly
Every guide covers what macOS can actually do — built-in shortcuts, settings, and Terminal tricks — before showing you the faster way.
How to Cut and Paste Files on a Mac
⌘X doesn't work on files in Finder — but cut and paste does exist on macOS. Here's the shortcut Apple actually built, why it works that way, and how to get the real thing.
How to Create a New File in Finder
Finder has no "New File" command — nothing like Windows' right-click → New. Here are the workarounds that actually work, from Terminal to Automator, and the one-keystroke way.
How to See Folder Sizes on a Mac
Finder shows “--” instead of folder sizes by default. Here's how to see real sizes with Get Info, the Calculate All Sizes setting, and du in Terminal — and why it works this way.
How to Show Hidden Files on a Mac
The fastest way to see hidden files in Finder is one shortcut — ⌘⇧ period. Here's how it works, the Terminal command behind it, the ~/Library special case, and how to hide things again.
How to Copy a File Path on a Mac
Finder can copy a full file path — the command is just hidden behind the Option key. Here's the right-click trick, the ⌥⌘C shortcut, the Terminal drag, and where to paste paths back in.
How to Customize the Finder Sidebar
Add, remove, and reorder Finder sidebar items, control the built-in sections, and put tags to work — plus the wall you'll eventually hit, and what to do about it.