wscat command not found

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

Introduction

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

wscat: command not found

or when using sudo you get the following error message

sudo: wscat: command not found

In Ubuntu wscat is provided by node-ws package.

node-ws is:

ws is a simple to use websocket implementation, up-to-date against RFC-6455, and probably the fastest WebSocket library for Node.js.

Passes the quite extensive Autobahn test suite. See http://einaros.github.com/ws for the full reports.

It also provides wscat, a command-line tool which can either act as a server or a client, and is useful for debugging websocket services.

Node.js is an event-based server-side javascript engine.

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

sudo apt-get -y install node-ws

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

You can also use apt command to install node-ws.

sudo apt -y install node-ws

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

sudo aptitude install node-ws

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