How To Install nocache on Ubuntu 18.04

In this tutorial we learn how to install nocache on Ubuntu 18.04. nocache is bypass/minimize file system caching for a program

Introduction

In this tutorial we learn how to install nocache on Ubuntu 18.04.

What is `nocache`

nocache is:

nocache tries to minimize the effect an application has on the Linux file system cache.

Use case: backup processes that should not interfere with the present state of the cache.

Also this package provides the following utilities:

cachedel : clear page cache for a file.
cachestats : print number of cached vs. not-cached pages for a file

There are three methods to install nocache 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 nocache Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install nocache

Install nocache Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install nocache using apt by running the following command:

sudo apt -y install nocache

Install nocache 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 nocache using aptitude by running the following command:

sudo aptitude -y install nocache

How To Uninstall nocache on Ubuntu 18.04

To uninstall only the nocache package we can use the following command:

sudo apt-get remove nocache

Uninstall nocache And Its Dependencies

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

sudo apt-get -y autoremove nocache

Remove nocache Configurations and Data

To remove nocache configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge nocache

Remove nocache configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge nocache

References

Summary

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