pinentry-fltk command not found

Introduction

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

pinentry-fltk: command not found

or when using sudo you get the following error message

sudo: pinentry-fltk: command not found

Solutions to pinentry-fltk: command not found

How To Fix pinentry-fltk: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu pinentry-fltk is provided by pinentry-fltk package.

pinentry-fltk is:

This package contains a program that allows for secure entry of PINs or pass phrases. That means it tries to take care that the entered information is not swapped to disk or temporarily stored anywhere. This functionality is particularly useful for entering pass phrases when using encryption software such as GnuPG or e-mail clients using the same. It uses an open protocol and is therefore not tied to particular software.

The program contained in this package implements a PIN entry dialog using the Fast Light Toolkit version 1.3. If the X Window System is not active then an alternative text-mode dialog will be used. There are sibling packages that implement PIN entry dialogs using other tool kits.

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

sudo apt-get -y install pinentry-fltk

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

You can also use apt command to install pinentry-fltk.

sudo apt -y install pinentry-fltk

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

sudo aptitude install pinentry-fltk

Summary

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