Here’s how do make a filter from scratch in Go as a bonzai stateful command branch.
📺 https://youtu.be/8nAaOhBFSHw
A filter is a computer program or subroutine to process a stream, producing another stream. While a single filter can be used individually, they are frequently strung together to form a pipeline. Usually, this term refers mostly to commands that accepts standard input with the intent to transform or “filter” the incoming lines or buffer.
Filters are a core part of the UNIX Philosophy. Modular, composable, filters are the UNIX way, not plugins. Learning to use filters in pipelines from within Ed/Vi/m are critical to learning universal UNIX/Linux scripting skills that work on any system without installing any additional editor or IDE.