How To Install blt-demo on Ubuntu 20.04

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In this tutorial we learn how to install blt-demo on Ubuntu 20.04. blt-demo is graphics extension library for Tcl/Tk – demos and examples

Introduction

In this tutorial we learn how to install blt-demo on Ubuntu 20.04.

What is blt-demo

blt-demo is:

BLT is a library of useful extensions for the Tcl language and the
popular Tk graphical toolkit. It adds a vector and tree data type,
background execution and some debugging tools to Tcl, and provides
several new widgets for Tk, including graphs, bar-charts, trees, tabs,
splines and hyper-links, as well as a new geometry manager, drag &
drop support, and more.

This package contains demos and samples showing the power and
versatility of BLT.

There are three methods to install blt-demo on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install blt-demo Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install blt-demo

Install blt-demo Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install blt-demo

Install blt-demo 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 blt-demo using aptitude by running the following command:

sudo aptitude -y install blt-demo

How To Uninstall blt-demo on Ubuntu 20.04

To uninstall only the blt-demo package we can use the following command:

sudo apt-get remove blt-demo

Uninstall blt-demo And Its Dependencies

To uninstall blt-demo and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:

sudo apt-get -y autoremove blt-demo

Remove blt-demo Configurations and Data

To remove blt-demo configuration and data from Ubuntu 20.04 we can use the following command:

sudo apt-get -y purge blt-demo

Remove blt-demo configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge blt-demo

References

Summary

In this tutorial we learn how to install blt-demo package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.

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