echo is a reimplementation of the echo(1) utility without libc. It is used to teach how argc and argv are passed in Unix.

Read my blog post about this codebase.

There is also a follow-up blog post about this codebase.

Just run make. This will probably only run on OpenBSD/amd64 as is. Feel free to port to your Unix of choice.

ISC License. See LICENSE for details.