ShellCheck is an open-source static analysis tool for shell scripts that detects syntax errors, bad practices, and potential security issues. It helps developers write more robust and maintainable shell scripts by providing detailed warnings and suggestions.

Features of ShellCheck:

• Identifies syntax errors, warnings, and possible security vulnerabilities in shell scripts.
• Provides recommendations for best practices to improve script readability and maintainability.
• Supports multiple shell dialects, including Bash, Dash, Ksh, and Sh.
• Integrates with various editors and IDEs such as VS Code, Vim, and Emacs.
• Can be used in CI/CD pipelines to automate script linting and validation.

To install ShellCheck on ubuntu, run:

sudo apt update && sudo apt install shellcheck

To check the installed version of ShellCheck, run:

shellcheck --version

Disclaimer: ShellCheck is an open source static analysis tool for shell scripts developed by the ShellCheck community. It is distributed under the GNU GPL license and is freely available for use and modification. This information is for educational purposes only and is not affiliated with, endorsed by, or sponsored by the ShellCheck development team. ShellCheck is provided "as is," without any warranty, express or implied. Users utilize this software at their own risk.