libwebsockets-test-server-extpoll command not found

Introduction

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

libwebsockets-test-server-extpoll: command not found

or when using sudo you get the following error message

sudo: libwebsockets-test-server-extpoll: command not found

Solutions to libwebsockets-test-server-extpoll: command not found

How To Fix libwebsockets-test-server-extpoll: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu libwebsockets-test-server-extpoll is provided by libwebsockets-test-server package.

libwebsockets-test-server is:

Libwebsockets is a lightweight pure C library for both websockets clients and servers built to use minimal CPU and memory resources and provide fast throughput in both directions.

This package contains several demonstration test servers.

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

sudo apt-get -y install libwebsockets-test-server

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

You can also use apt command to install libwebsockets-test-server.

sudo apt -y install libwebsockets-test-server

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

sudo aptitude install libwebsockets-test-server

Summary

In this tutorial we learn how to fix libwebsockets-test-server-extpoll command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.