ktnef command not found

Introduction

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

ktnef: command not found

or when using sudo you get the following error message

sudo: ktnef: command not found

Solutions to ktnef: command not found

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

In Ubuntu ktnef is provided by ktnef package.

ktnef is:

The TNEF File Viewer allows one to handle easily mail attachments using the TNEF format. Those attachments are usually found in mails coming from Microsoft mail servers and embed the mail properties as well as the actual attachments.

An attachment in TNEF format is most often named winmail.dat or win.dat.

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

sudo apt-get -y install ktnef

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

You can also use apt command to install ktnef.

sudo apt -y install ktnef

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

sudo aptitude install ktnef

Summary

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