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.
The new read-only system volume changes a lot of paths on which scripts and apps rely. Here’s some experience in fixing the problems that result.
How can third-party command tools access files under Mojave’s new privacy protection? Isn’t this going to be a nightmare?
Apple has shown a way ahead for full apps to access private data in Mojave, but has been curiously silent with respect to command tools. How will they cope?
Create a Finder alias from the command line, and resolve them to full paths – a new free command tool, with source.
Writing advanced dialog code and building a friendly front-end for a complicated command tool, in AppleScript.
How can I undo Terminal commands?
How can I use the sudo command from a non-admin user account?