yash ☆
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Description:
Yet another shell: a POSIX-compliant command-line shell
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: System utilities
Tags: shell posix terminal command-line utility
Install: brew install yash
About:
Yash is a lightweight, POSIX-compliant shell designed for efficiency and portability. It provides standard shell features like job control and command-line editing while maintaining a small footprint. Its strict adherence to standards makes it ideal for scripting and environments where compatibility is critical.
Key Features:
  • POSIX-compliant (IEEE Std 1003.1)
  • Lightweight and fast
  • Built-in command line editing
  • Job control and signal handling
Use Cases:
  • System scripting requiring strict POSIX compliance
  • Embedded systems with limited resources
  • Daily driving as a minimal alternative to Bash
Alternatives:
  • bash – Bash is more feature-rich but larger and less strictly POSIX-compliant
  • zsh – Zsh offers extensive plugins and customization but is heavier
Version History
Detected Version Rev Change Commit
Sep 15, 2025 6:10am 0 VERSION_BUMP e5aaa4ef
Sep 15, 2025 5:25am 0 VERSION_BUMP 748d2911
Sep 11, 2024 3:48pm 0 VERSION_BUMP 076ba1e2
Aug 4, 2024 3:54pm 0 VERSION_BUMP 5df55980
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