calibre command not found

Introduction

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

calibre: command not found

or when using sudo you get the following error message

sudo: calibre: command not found

Solutions to calibre: command not found

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

In Ubuntu calibre is provided by calibre package.

calibre is:

Calibre is a complete e-library solution. It includes library management, format conversion, news feeds to e-book conversion, e-book viewer and editor, and e-book reader sync features.

Calibre is primarily an e-book cataloging program. It manages your e-book collection for you. It is designed around the concept of the logical book, i.e. a single entry in the database that may correspond to e-books in several formats. It also supports conversion to and from a dozen different e-book formats.

Calibre supports almost every single e-Reader (e.g., Kindle, Kobo, Nook) and is compatible with more devices with every update. Calibre can transfer your e-books from one device to another in seconds, wirelessly or with a cable. It will send the best file format for your device converting it if needed, automatically.

Calibre can automatically fetch news from a number of websites/RSS feeds, format the news into a e-book and upload to a connected device.

Calibre has also a built-in e-book viewer that can display all the major e-book formats.

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

sudo apt-get -y install calibre

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

You can also use apt command to install calibre.

sudo apt -y install calibre

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

sudo aptitude install calibre

Summary

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