How To Install cron-deja-vu on Debian 10

Learn how to install cron-deja-vu on Debian 10 with this tutorial. cron-deja-vu is filter for recurring cron mails

Introduction

In this tutorial we learn how to install cron-deja-vu on Debian 10.

What is cron-deja-vu

cron-deja-vu is:

It filters unwanted recurring cron emails, is trained using a MailDir folder, and intended for usage with procmail. Traditional spam filters are less suitable for cron emails as these are based on probabilities and keywords. This filter applies rules to cron email to unify and filter it. E.g. All numbers are unified, or dates, one can define custom rules as regular expressions. The filter can be seen as a dynamic logcheck.

There are three methods to install cron-deja-vu on Debian 10. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install cron-deja-vu Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install cron-deja-vu

Install cron-deja-vu Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install cron-deja-vu using apt by running the following command:

sudo apt -y install cron-deja-vu

Install cron-deja-vu 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 Debian. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install cron-deja-vu using aptitude by running the following command:

sudo aptitude -y install cron-deja-vu

How To Uninstall cron-deja-vu on Debian 10

To uninstall only the cron-deja-vu package we can use the following command:

sudo apt-get remove cron-deja-vu

Uninstall cron-deja-vu And Its Dependencies

To uninstall cron-deja-vu and its dependencies that are no longer needed by Debian 10, we can use the command below:

sudo apt-get -y autoremove cron-deja-vu

Remove cron-deja-vu Configurations and Data

To remove cron-deja-vu configuration and data from Debian 10 we can use the following command:

sudo apt-get -y purge cron-deja-vu

Remove cron-deja-vu configuration, data, and all of its dependencies

We can use the following command to remove cron-deja-vu configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge cron-deja-vu

Dependencies

cron-deja-vu have the following dependencies:

References

Summary

In this tutorial we learn how to install cron-deja-vu package on Debian 10 using different package management tools: apt, apt-get and aptitude.