Stories by Rob Griffiths

How to use Terminal to securely erase free space on a Mac’s drive

Learn how to use Terminal to securely erase free drive space.

How to play audio files in the Terminal

Learn how to play, convert, and get info on audio files using some macOS Terminal commands.

How to use the Terminal to see what Mac processes are accessing the internet

Use Terminal to see which processes are using your Internet connection

How to change the window background color and image for macOS’s Terminal

Learn how to make Terminal use a user-defined background image each time you open a new window.

How to fix macOS command line typos in Terminal

Made a mistake typing a Terminal command? The caret character (^) can be your best friend.

How to use Quick Look from Terminal in macOS

You may be surprised to learn that you can use Leopard’s Quick Look feature in the decidedly non-GUI world of Terminal. Well, you can, and here’s how.

How to use the macOS command line to compare two folders’ contents in Terminal

Use a built-in Unix program to quickly compare two folders' contents.

Numbers for iPhone

When I reviewed the initial release of Numbers for iPad in April 2010, I noted that it worked well for creating original spreadsheets, and for working on Numbers-native spreadsheets from your Mac, but that it fell short due to its inability to output...

Does Apple have an OS X update up its sleeve?

It's a widely accepted notion by now that Monday's Worldwide Developers Conference keynote is going to be iPhone-centric. Whether that entails more on the iPhone 2.0 software, the forthcoming App Store for native iPhone apps, or an entirely new iPhon...