Go

The new “is battery” and “is known battery” subcommands can detect battery attributes with a clean, readable syntax. This post walks through practical examples of replacing complex shell commands with these new subcommands, demonstrating how they simplify a SketchyBar configuration on macOS. Learn how to check battery charge levels, charging state, and even conditionally load menu bar items based on whether your device has a battery.

I wanted a tool for debouncing shell commands, to ensure that tasks like installing nightly builds or running scripts only execute once within a set time period. This is the story of how I finally ended up with a solution that I’m happy with.

I love writing bash scripts, but there are some aspects of it which I find to be a bit tedious. I’ve written “is” to try to make shell programming a little more enjoyable. Let’s look at how to get started with it.

Just like domain name registrations, TLS/SSL certificates need to be renewed regularly. Let’s look at ways to monitor TLS/SSL expiry, from using a hosted service like https://prettygoodping to doing it ourselves in curl, Go and Perl.