How To Install nss-updatedb on Ubuntu 18.04

In this tutorial we learn how to install nss-updatedb on Ubuntu 18.04. nss-updatedb is Cache name service directories in DB format

Introduction

In this tutorial we learn how to install nss-updatedb on Ubuntu 18.04.

What is nss-updatedb

nss-updatedb is:

This package contains a script, nss_updatedb, which can be used to maintain local caches of user and group directories. These can then be used by the DB Name Service Switch module (libnss-db) to provide name service when the system is offline.

These tools are designed to work with libpam-ldap and libnss-ldap.

There are three methods to install nss-updatedb on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install nss-updatedb Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install nss-updatedb using apt-get by running the following command:

sudo apt-get -y install nss-updatedb

Install nss-updatedb Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install nss-updatedb using apt by running the following command:

sudo apt -y install nss-updatedb

Install nss-updatedb Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install nss-updatedb using aptitude by running the following command:

sudo aptitude -y install nss-updatedb

How To Uninstall nss-updatedb on Ubuntu 18.04

To uninstall only the nss-updatedb package we can use the following command:

sudo apt-get remove nss-updatedb

Uninstall nss-updatedb And Its Dependencies

To uninstall nss-updatedb and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove nss-updatedb

Remove nss-updatedb Configurations and Data

To remove nss-updatedb configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge nss-updatedb

Remove nss-updatedb configuration, data, and all of its dependencies

We can use the following command to remove nss-updatedb configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge nss-updatedb

References

Summary

In this tutorial we learn how to install nss-updatedb package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.