io_demo command not found

Introduction

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

io_demo: command not found

or when using sudo you get the following error message

sudo: io_demo: command not found

Solutions to io_demo: command not found

How To Fix io_demo: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu io_demo is provided by ucx-utils package.

ucx-utils is:

Unified Communication X (UCX) provides an optimized communication layer for Message Passing (MPI), PGAS/OpenSHMEM libraries and RPC/data-centric applications. UCX utilizes high-speed networks for inter-node communication,i and shared memory mechanisms for efficient intra-node communication. This package provides utilities for the UCX frameworks.

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

sudo apt-get -y install ucx-utils

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

You can also use apt command to install ucx-utils.

sudo apt -y install ucx-utils

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

sudo aptitude install ucx-utils

Summary

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