relational command not found

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

Introduction

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

relational: command not found

or when using sudo you get the following error message

sudo: relational: command not found

In Ubuntu relational is provided by relational package.

relational is:

Relational is primarily a tool to provide a workspace for experimenting with relational algebra, an offshoot of first-order logic.

This package provides a graphical user interface that can be used to execute relational queries.

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

sudo apt-get -y install relational

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

You can also use apt command to install relational.

sudo apt -y install relational

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

sudo aptitude install relational

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