ykman-gui command not found

In this troubleshooting guide we learn how to fix ykman-gui command not found error message

Introduction

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

ykman-gui: command not found

or when using sudo you get the following error message

sudo: ykman-gui: command not found

In Ubuntu ykman-gui is provided by yubikey-manager-qt package.

yubikey-manager-qt is:

YubiKeys are USB tokens that act like keyboards and generate one-time or static passwords.

This is a graphical application for configuring a YubiKey over all transport modes and programming various types of credentials.

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

sudo apt-get -y install yubikey-manager-qt

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

You can also use apt command to install yubikey-manager-qt.

sudo apt -y install yubikey-manager-qt

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

sudo aptitude install yubikey-manager-qt

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