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.