x509-util command not found

In this troubleshooting guide we learn how to fix x509-util command not found error message

Introduction

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

x509-util: command not found

or when using sudo you get the following error message

sudo: x509-util: command not found

In Ubuntu x509-util is provided by x509-util package.

x509-util is:

Utility to parse, show, validate, sign and produce X.509 certificates and chains.

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

sudo apt-get -y install x509-util

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

You can also use apt command to install x509-util.

sudo apt -y install x509-util

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

sudo aptitude install x509-util

In this tutorial we learn how to fix x509-util command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.