aa-teardown command not found

Introduction

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

aa-teardown: command not found

or when using sudo you get the following error message

sudo: aa-teardown: command not found

Solutions to aa-teardown: command not found

How To Fix aa-teardown: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu aa-teardown is provided by apparmor package.

apparmor is:

apparmor provides the system initialization scripts needed to use the AppArmor Mandatory Access Control system, including the AppArmor Parser which is required to convert AppArmor text profiles into machine-readable policies that are loaded into the kernel for use with the AppArmor Linux Security Module.

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

sudo apt-get -y install apparmor

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

You can also use apt command to install apparmor.

sudo apt -y install apparmor

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

sudo aptitude install apparmor

Summary

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