unicorn_rails command not found

Introduction

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

unicorn_rails: command not found

or when using sudo you get the following error message

sudo: unicorn_rails: command not found

Solutions to unicorn_rails: command not found

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

In Ubuntu unicorn_rails is provided by unicorn package.

unicorn is:

Unicorn is an HTTP server for Rack applications designed to only serve fast clients on low-latency, high-bandwidth connections and take advantage of features in Unix and Unix-like kernels. Slow clients should only be served by placing a reverse proxy capable of fully buffering both request and response in between Unicorn and slow clients.

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

sudo apt-get -y install unicorn

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

You can also use apt command to install unicorn.

sudo apt -y install unicorn

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

sudo aptitude install unicorn

Summary

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