“No Space Left on Device” on a Mac: Where the Space Went
No space left on device is an honest error from the kernel: a write was refused because the filesystem had nowhere to put it. The disk is full. What makes it confusing on a Mac…
AirDrop Not Working on a Mac: Check the Interface It Runs On
AirDrop fails in a way that gives you nothing to work with: the other device simply is not there. No error, no explanation, just an empty sharing sheet. The reason it is so opaque is…
How to Use osascript: Run AppleScript from the Mac Terminal
The osascript command runs AppleScript — and JavaScript — straight from the Terminal, which makes it the bridge between a shell script and the Mac’s GUI layer. It is how a shell script pops a…
How to Zip Files on a Mac Without the __MACOSX Junk
There are two easy ways to make a zip on a Mac: right-click a folder in the Finder and choose Compress, or run zip in the Terminal. Both work. The problem shows up on the…
How to Show Hidden Files on a Mac
There is a keyboard shortcut that shows hidden files in the Finder immediately, and for most people that is the entire answer. What trips people up comes after: some files stay out of sight even…
Mac Update Stuck? How to Tell If It’s Frozen or Just Working
A macOS update that looks frozen — the bar stuck in one place for an hour, or “less than a minute remaining” that never ends — is usually still working. A big update spends long…
macOS Storage Cleanup: Which Commands Actually Free Space
This page used to hand out a copy-paste cleanup script and tell readers to run it periodically. Several commands in that script never freed a single byte. They did not error. They exited 0, printed…