How To Install hashcash on Ubuntu 22.04

In this tutorial we learn how to install hashcash on Ubuntu 22.04. hashcash is postage payment scheme for email based on hash calculations

Introduction

In this tutorial we learn how to install hashcash on Ubuntu 22.04.

What is hashcash

hashcash is:

Hash cash is a payment scheme that uses CPU cycles as the form of payment. This can be used as a counter-measure for junk email (spam) by using the hash cash token as a proof of payment for each email that you sent.

There are three methods to install hashcash on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install hashcash Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install hashcash

Install hashcash Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install hashcash

Install hashcash 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 hashcash using aptitude by running the following command:

sudo aptitude -y install hashcash

How To Uninstall hashcash on Ubuntu 22.04

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

sudo apt-get remove hashcash

Uninstall hashcash And Its Dependencies

To uninstall hashcash and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:

sudo apt-get -y autoremove hashcash

Remove hashcash Configurations and Data

To remove hashcash configuration and data from Ubuntu 22.04 we can use the following command:

sudo apt-get -y purge hashcash

Remove hashcash configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge hashcash

References

Summary

In this tutorial we learn how to install hashcash package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.