Winuxsh

Bash, native on Windows. No WSL. No VM. No /mnt/c. No cmdlet dialect. Just the shell your fingers already know — and the one your AI agent actually speaks.

This is the Winuxsh documentation. Start with the guides, or jump straight into the shell:

C:\Users\you\repo
❯ test -f Cargo.toml && echo "rust, obviously"
rust, obviously

❯ printf "%s\n" alpha beta gamma | grep beta
beta

❯ cd "C:\Program Files"
C:\Program Files

What Winuxsh is

  • Bash syntax. if, for, case, $(...), pipes, redirects, heredocs, functions, aliases — the whole grammar, powered by rubash, which passes the GNU Bash project's own test suite (86/86 upstream tests green).
  • Windows-native. One binary, one process. Native Windows paths (C:\... and C:/...), direct execution of git.exe, node.exe, cargo.exe, python.exe — no VM, no emulation layer, no path conversion roulette.
  • Unix commands included. WinuxCmd ships ls, cat, grep, find, test, printf, and friends as Windows command links, with no separate installation.
  • AI-native. winuxsh -c is a contract: no banners, stable stdout/stderr, exact exit-code propagation. What an agent writes is what the process receives — the quoting roulette of PowerShell and the path mangling of MSYS/Git Bash are both gone.
  • A prompt you'll enjoy. 27 bundled themes (agnoster, spaceship, pure, catppuccin-mocha, tokyonight, p10 family, ...), a git prompt that grows teeth inside any repository, syntax highlighting, autosuggestions, vi and emacs modes, and Ctrl+R history search.
  • Plugins with a permission model. 40+ bundled packs (git, docker, kubectl, npm, zoxide, direnv, fzf, thefuck, ...), with third parties sandboxed in a WASM host behind declared permissions.

The documentation

GuideWhat it covers
Getting StartedZero to a git prompt in ten minutes
Advanced UsageExecution modes, startup files, themes, plugins, completion, debugging
Install & Self-UpdateInstaller, portable zip, Windows Terminal profile, updates
Zsh Migration GuideMoving .zshrc and Oh My Zsh habits over safely
Bash Compatibility MatrixWhat Bash surface is verified, layer by layer
Architecturerubash + WinuxCmd + reedline, path model, host contract
RoadmapWhat is done, what is next

Get it

Download the installer from GitHub Releases, or build from source:

git clone https://github.com/unixwin/winuxsh.git
cd winuxsh
cargo build --release
target\release\winuxsh.exe

Keep it current with winuxsh --self-update (or self-update inside the shell) and wpm update winuxcmd for the Unix command set. Questions and bug reports go to github.com/unixwin/winuxsh/issues.

Shell semantics live upstream in rubash — fix the engine, and every Bash user on Windows wins.