listen command not found

Introduction

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

listen: command not found

or when using sudo you get the following error message

sudo: listen: command not found

Solutions to listen: command not found

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

In Ubuntu listen is provided by ruby-listen package.

ruby-listen is:

This Ruby library listens to file modifications and notifies you about the changes.

It detects file modification, addition and removal, and supports multiple directories from a single listener. It uses checksum comparison for modifications made under the same second, and allows supplying regexp-patterns to ignore and filter paths for better results.

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

sudo apt-get -y install ruby-listen

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

You can also use apt command to install ruby-listen.

sudo apt -y install ruby-listen

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

sudo aptitude install ruby-listen

Summary

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