ShellCheck – shell script analysis tool
Scan your shell scripts for errors and suggestions with this free online tool. Instantly find bugs and improve your code quality, right in your browser.
Spot bugs in your shell scripts instantly
ShellCheck is a handy online tool that helps you write better shell scripts by automatically checking your code for common errors and potential issues. Just paste your script into the site, and you'll quickly see helpful tips, warnings, and suggestions to improve your code quality and avoid bugs.
Whether you're a beginner learning shell scripting or an experienced developer wanting a quick code review, ShellCheck makes it easy to catch mistakes before they cause problems. You don’t need to install anything—just use the website to analyze your scripts and get clear, actionable feedback right away.
With its open-source approach and user-friendly interface, ShellCheck is designed for anyone who wants to make their shell scripts safer, cleaner, and more reliable.
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