Plugging programs together; pipelines. It exposes the UNIX principle. You can use it to augment, to extend, to improve programs written in any language you can

Plugging programs together; pipelines. It exposes the UNIX principle. You can use it to augment, to extend, to improve programs written in any language you can imagine, past, present and future. If the program is written in C, C++, Rust you'll get the performance of those programs. What I'm saying you might find very obvious when using it interactively but there have been so many instances where it fulfils my needs. More often than not in certain problem domains it's the first thing I reach for and it usually solves the issue. I'd also like to add that I exclusively write POSIX shell scripts rather than Bash.