ShellCheck – A Tool That Shows Warnings and Suggestions for Shell Scripts

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ShellCheck is a static analysis tool that shows warnings and suggestions concerning bad code in bash/sh shell scripts. It can be used in several ways: from the web by pasting your shell script in an online editor (Ace – a standalone code editor written in JavaScript) in https://www.shellcheck.net (it is always synchronized to the latest git commit, and is the simplest way to give ShellCheck a go) for instant feedback.

Alternatively, you can install it on your machine and run it from the terminal, integrate it with your text editor as well as in your build or test suites.

There are three things ShellCheck does primarily:

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