Critic.sh – Simple testing framework for Bash
Dead simple testing framework for Bash with coverage reporting - Checksum/critic.sh
Critic.sh – Simple testing framework for Bash launched on February 14, 2020 with 79 votes, #421 of 3,162 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 6 years on.
In plain words
Critic.sh is a testing framework designed for Bash scripts. It enables developers to write and run tests for their shell code, helping ensure scripts work as intended. The framework is built specifically for the Bash environment, making it accessible to those working with shell scripting. It targets developers and system administrators who need to validate their Bash code quality and functionality.
written from the facts on this page · September 2026
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Bach.sh is a real unit testing framework for Bash2020 · github.com · ▲52Unit testing framework for developing cross-platform Bash unit tests - bach-sh/bach
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The pattern of downloading and executing installation scripts without verifying them has bothered me for a while. I started messing around with a way to verify the checksum of scripts before I execute them. I've found it a really useful tool for installing things like Rust or Deno. It's written entirely as a shell script, and it's easy to read and understand what's happening. I hope it may be useful to someone else!

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