How To Install lcl-nogui on Ubuntu 18.04

In this tutorial we learn how to install lcl-nogui on Ubuntu 18.04. lcl-nogui is Lazarus Components Library - no GUI backend dependency package

Introduction

In this tutorial we learn how to install lcl-nogui on Ubuntu 18.04.

What is lcl-nogui

lcl-nogui is:

Lazarus is an IDE to create (graphical and console) applications with Free Pascal, the (L)GPLed Pascal and Object Pascal compiler that runs on Windows, Linux, Mac OS X, FreeBSD and more.

Lazarus is the missing part of the puzzle that will allow you to develop programs for all of the above platforms in a Delphi-like environment. The IDE is a RAD tool that includes a form designer.

Unlike Java’s “write once, run anywhere” motto, Lazarus and Free Pascal strive for “write once, compile anywhere”. Since the exact same compiler is available on all of the above platforms you don’t need to do any recoding to produce identical products for different platforms.

In short, Lazarus is a free RAD tool for Free Pascal using its Lazarus Component Library (LCL).

This dependency package always depends on the latest available version of the package containing the part of the LCL for developing non-graphical applications and command line tools.

There are three methods to install lcl-nogui on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install lcl-nogui Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install lcl-nogui

Install lcl-nogui Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install lcl-nogui

Install lcl-nogui 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 lcl-nogui using aptitude by running the following command:

sudo aptitude -y install lcl-nogui

How To Uninstall lcl-nogui on Ubuntu 18.04

To uninstall only the lcl-nogui package we can use the following command:

sudo apt-get remove lcl-nogui

Uninstall lcl-nogui And Its Dependencies

To uninstall lcl-nogui and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove lcl-nogui

Remove lcl-nogui Configurations and Data

To remove lcl-nogui configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge lcl-nogui

Remove lcl-nogui configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge lcl-nogui

References

Summary

In this tutorial we learn how to install lcl-nogui package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.