rlmgr command not found

Introduction

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

rlmgr: command not found

or when using sudo you get the following error message

sudo: rlmgr: command not found

Solutions to rlmgr: command not found

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

In Ubuntu rlmgr is provided by qdbm-util package.

qdbm-util is:

QDBM is an embedded database library compatible with GDBM and NDBM. It features hash database and B+ tree database and is developed referring to GDBM for the purpose of the following three points: higher processing speed, smaller size of a database file, and simpler API. This is the QDBM Database utilities package.

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

sudo apt-get -y install qdbm-util

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

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

sudo apt -y install qdbm-util

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

sudo aptitude install qdbm-util

Summary

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