unlambda command not found

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

Introduction

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

unlambda: command not found

or when using sudo you get the following error message

sudo: unlambda: command not found

In Ubuntu unlambda is provided by unlambda package.

unlambda is:

It is an interpreter of the Unlambda language, written in the pure, lazy, functional language Haskell.

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

sudo apt-get -y install unlambda

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

You can also use apt command to install unlambda.

sudo apt -y install unlambda

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

sudo aptitude install unlambda

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