Kerno Shell

Kerno is a minimalist command-line shell written in Rust, focused on speed, simplicity, and portability.

Features

• Built-in commands: echo, scanpath, set, get, unset, env, cd, pwd, ls, cat, touch, rm, mkdir, rmdir, date, clear, write, read, exit, help, history
• Automatically recognizes executables from $PATH
• Persistent environment variables stored in $HOME/kerno.toml
• Session history tracking
• Fully cross-platform
• Written in pure Rust — no bash dependency

Quick Start

Install via Cargo:

cargo install kerno

Run the shell:

kerno

Configuration

Kerno automatically loads environment variables from:

~/.kerno.toml

To add persistent variables:

set FOO bar

Or edit the TOML file directly:

FOO = "bar"
PATH = "/usr/local/bin"

Examples

echo Hello world
set NAME Kerno
get NAME
scanpath              # List all system executables
cd src
ls

Why Kerno?

Because sometimes you want a shell that is:

• Lightweight
• Understandable
• Hackable
• Rusty

Author

Created by Pjdur
Licensed under MIT

Contribute

Pull requests welcome! See CONTRIBUTING.md for details.