How To Install grepcidr on Debian 11

In this tutorial we learn how to install grepcidr on Debian 11. grepcidr is Filter IP addresses matching IPv4/IPv6 CIDR/network specification

Introduction

In this tutorial we learn how to install grepcidr on Debian 11.

What is grepcidr

grepcidr is:

grepcidr can be used to filter a list of IP addresses against one or more Classless Inter-Domain Routing (CIDR) specifications, or arbitrary networks specified by an address range. As with grep, there are options to invert matching and load patterns from a file. grepcidr is capable of comparing thousands or even millions of IPs to networks with little memory usage and in reasonable computation time.

grepcidr has endless uses in network software, including: mail filtering and processing, network security, log analysis, and many custom applications.

There are three methods to install grepcidr on Debian 11. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install grepcidr Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install grepcidr

Install grepcidr Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install grepcidr

Install grepcidr 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 grepcidr using aptitude by running the following command:

sudo aptitude -y install grepcidr

How To Uninstall grepcidr on Debian 11

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

sudo apt-get remove grepcidr

Uninstall grepcidr And Its Dependencies

To uninstall grepcidr and its dependencies that are no longer needed by Debian 11, we can use the command below:

sudo apt-get -y autoremove grepcidr

Remove grepcidr Configurations and Data

To remove grepcidr configuration and data from Debian 11 we can use the following command:

sudo apt-get -y purge grepcidr

Remove grepcidr configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge grepcidr

Dependencies

grepcidr have the following dependencies:

References

Summary

In this tutorial we learn how to install grepcidr package on Debian 11 using different package management tools: apt, apt-get and aptitude.