What is “shellcheck” Package?

Static analysis and lint tool, for (ba)sh scripts

For more details: https://www.shellcheck.net/

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install shellcheck.

  brew install shellcheck

Now, use shellcheck!

ShellCheck is:

• GPLv3: free as in freedom
• available on GitHub
• already packaged for your distro or package manager
• supported as an integrated linter in major editors
• available in CodeClimate, Codacy and CodeFactor to auto-check your GitHub repo
• written in Haskell, if you’re into that sort of thing.