autopkgtest-virt-null command not found

Introduction

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

autopkgtest-virt-null: command not found

or when using sudo you get the following error message

sudo: autopkgtest-virt-null: command not found

Solutions to autopkgtest-virt-null: command not found

How To Fix autopkgtest-virt-null: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu autopkgtest-virt-null is provided by autopkgtest package.

autopkgtest is:

autopkgtest runs tests on binary packages. The tests are run on the package as installed on a testbed system (which may be found via a virtualisation or containment system). The tests are expected to be supplied in the corresponding Debian source package.

See autopkgtest(1) and /usr/share/doc/autopkgtest. Depending on which virtualization server you want to use, you need to install additional packages (schroot, lxc, lxd, or qemu-system)

For generating tests of well-known source packages such as Perl and Ruby libraries you should install the autodep8 package.

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

sudo apt-get -y install autopkgtest

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

You can also use apt command to install autopkgtest.

sudo apt -y install autopkgtest

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

sudo aptitude install autopkgtest

Summary

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