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Why privileged commands may never be allowed

Running an AppleScript which tries to run a shell command with root privileges can fail. Here’s why, and what we can’t do about it.

February 15, 2020 Macs, Technology

Watch that space: More fun with Unicode in file names

How can you put four files with apparently identical names in the same folder? Here’s the secret, and the magic of Unicode.

January 11, 2020 Macs, Technology

Are you ever likely to use Terminal in Catalina?

Do you know how to customise the zsh shell now standard in Catalina? Here’s an excellent book which covers it in detail – and curious choice in 10.15.

November 23, 2019 Macs, Technology

How do the Finder, Terminal and Spotlight handle extended attribute flags?

Does using xattr flags disrupt Spotlight indexing, and how are those flags respected using different methods of copying a file?

July 26, 2019 Macs, Technology

How to build an APFS bootable clone in Terminal

I’m sure this used to be much easier in HFS+, but here’s a detailed set of instructions for making a bootable clone in High Sierra or Mojave, for an APFS disk.

December 29, 2018 Macs, Technology

Preparing to upgrade to Mojave: Scripting, commands, and development

T T Read More

Advice on preparing for and using Mojave for all who go beyond using standard off-the-shelf apps – scripting, automating, building from source, or full-blown Xcode development.

September 14, 2018 Macs, Technology

Mojave’s privacy protection, command tools, and scripts

How can third-party command tools access files under Mojave’s new privacy protection? Isn’t this going to be a nightmare?

August 28, 2018 Macs, Technology

The Joy of ssh: remote control and quick copying

When your Mac seems unresponsive and its GUI frozen, you don’t have to reach for the Power button. Try connecting using ssh: it’s actually very simple and valuable.

May 10, 2018 Macs, Technology

Last Week on My Mac: Is the macOS command line doomed?

A defining difference between macOS and iOS, the command line depends on constancy of file names, and consistency of paths. iCloud breaks both, as well as Finder aliases.

May 6, 2018 Macs, Technology

Inside iCloud with Cirrus 1.0b5: Paths and containers

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Illustrated workthrough with Desktop & Documents Folders option turned on, showing file layouts in the GUI and file system. And a new version of Cirrus to do it with.

May 4, 2018 Macs, Technology

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