How To Install websocketd on Ubuntu
Posted on April 1, 2023 (Last modified on May 20, 2023 )
3 minutes • 456 words
Introduction
In this tutorial we learn how to install websocketd on Ubuntu.
What is websocketd
websocketd is:
websocketd is a small command-line tool that will wrap an existing command-line interface program, and allow it to be accessed via a WebSocket.
WebSocket-capable applications can now be built very easily. As long as you can write an executable program that reads STDIN and writes to STDOUT, you can build a WebSocket server. Do it in Python, Ruby, Perl, Bash, C, Go, PHP, Java, Clojure, Scala, Groovy, Expect, Awk, VBScript, Haskell, Lua, R, whatever! No networking libraries necessary.
websocketd will start a WebSocket server on a specified port, and listen for connections.
Upon a connection, it will fork the appropriate process, and disconnect the process when the WebSocket connection closes (and vice-versa).
Any message sent from the WebSocket client will be piped to the process’s STDIN stream, followed by a \n newline.
There are three methods to install websocketd on Ubuntu. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install websocketd Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install websocketd using apt-get by running the following command:
sudo apt-get -y install websocketd
Install websocketd Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install websocketd using apt by running the following command:
sudo apt -y install websocketd
Install websocketd Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install websocketd using aptitude by running the following command:
sudo aptitude -y install websocketd
How To Uninstall websocketd on Ubuntu
To uninstall only the websocketd package we can use the following command:
sudo apt-get remove websocketd
Uninstall websocketd And Its Dependencies
To uninstall websocketd and its dependencies that are no longer needed by Ubuntu, we can use the command below:
sudo apt-get -y autoremove websocketd
Remove websocketd Configurations and Data
To remove websocketd configuration and data from Ubuntu we can use the following command:
sudo apt-get -y purge websocketd
Remove websocketd configuration, data, and all of its dependencies
We can use the following command to remove websocketd configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge websocketd
Dependencies
websocketd have the following dependencies:
References
Summary
In this tutorial we learn how to install websocketd package on Ubuntu using different package management tools: apt, apt-get and aptitude.