Submit
Launch ToolkitCalculatorsConvertersDeveloperTextAll toolsLaunches
Launch your project Sign in
Theme
Home/Launches/ShellCheck

ShellCheck

A linter that catches your shell script bugs before prod does.

Tool·Developer·Free

Visit shellcheck.net
ShellCheck screenshot

About ShellCheck

ShellCheck statically analyzes shell scripts and flags real bugs: quoting mistakes, useless cats, portability traps and worse. The online version at shellcheck.net lets you paste a script and get the findings instantly, free and open source.

Best for: Use this when a bash script is about to go anywhere near production.

Pros

  • Finds genuinely dangerous quoting and expansion bugs
  • Each finding links to a wiki page explaining the why
  • Same engine available in editors and CI

Cons

  • Bash and POSIX shells only
  • Occasionally pedantic on style-level findings

Is ShellCheck any good?

Give your verdict. Sign-in needed to vote and comment.

More in Developer

regex101The regex playground that explains every token as you type.regex101.comjwt.ioDecode and verify JSON Web Tokens in one paste.jwt.iocrontab.guruThe quick and simple editor for cron schedule expressions.crontab.guruJSON CrackSee your JSON as an explorable graph instead of a wall of braces.jsoncrack.comHoppscotchA fast, open source API client that lives in a tab.hoppscotch.ioCarbonTurn a code snippet into a beautiful shareable image.carbon.now.shexplainshellPaste a shell one-liner, get every flag explained.explainshell.comDevDocsEvery API doc set in one fast, offline-capable search.devdocs.ioCan I useThe browser support table the whole web dev world checks.caniuse.comBundlephobiaFind out what that npm install really costs your users.bundlephobia.comtransform.toolsPaste one format, get another: JSON to TypeScript and 30 more.transform.tools

Prefer not to leave your browser?

These yourhack.ai tools cover related ground and run entirely on your device: private, instant, no sign-up.

Chmod CalculatorToggle read, write and execute permissions for owner, group and others to get the octal chmod number and symbolic notation instantly.gitignore GeneratorSelect your languages, frameworks and tools to build a solid .gitignore file with sensible defaults, ready to copy into your repo.Cron Expression ParserPaste a cron schedule to get a plain-English explanation and the next upcoming run times, all computed in your browser.

Built something?

Get it in front of people looking for it. Free review.

Launch your project