shellcheck command not found

In this troubleshooting guide we learn how to fix shellcheck command not found error message

Introduction

When you run more command in linux terminal / console, you get the following error message

shellcheck: command not found

or when using sudo you get the following error message

sudo: shellcheck: command not found

In Ubuntu shellcheck is provided by shellcheck package.

shellcheck is:

The goals of ShellCheck are:

To point out and clarify typical beginner’s syntax issues, that causes a shell to give cryptic error messages.
To point out and clarify typical intermediate level semantic problems, that causes a shell to behave strangely and counter-intuitively.
To point out subtle caveats, corner cases and pitfalls, that may cause an advanced user’s otherwise working script to fail under future circumstances.

To fix this problem, we can install more using the command below.

sudo apt-get -y install shellcheck

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install shellcheck.

sudo apt -y install shellcheck

Or if you have aptitude installed you can use the following command.

sudo aptitude install shellcheck

In this tutorial we learn how to fix shellcheck command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.