about

One command to answer: what machine is this, and how do I look around?

Why

Drop into a random Linux box via wsl, SSH, a container, or a teammate’s laptop, and the discovery story is a mess: /etc/os-release (sometimes), uname, sw_vers, systeminfo, $SHELL vs ps -p $$, WSL env vars that only exist on good days…

about prints the orientation facts first, then a short cheat sheet of the commands that actually help on this OS family.

Under Nushell, the cheat sheet switches to structured nu idioms (sys, $env, ls, …). Outside Nushell, you still get the full classic tip sheet — plus a nudge to install nu. Nushell is never required; about always runs.

Quick start

make
./about

Install onto PATH:

sudo make install    # PREFIX=/usr/local by default
about

Actually Portable Executable

Release builds use Cosmopolitan Libc to produce an Actually Portable Executable — one fat binary for Linux, macOS, Windows, and BSDs (amd64 + arm64).

make ape
./about.com

See Building for WSL and CI notes.