How To Install cron-deja-vu on Debian 9
Introduction
In this tutorial we learn how to install cron-deja-vu on Debian 9.
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 9. 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 9
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 9, 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 9 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 9 using different package management tools: apt, apt-get and aptitude.