How To Install roslang on Ubuntu 18.04

In this tutorial we learn how to install roslang on Ubuntu 18.04. roslang is Common metapackage for all Robot OS client libraries

Introduction

In this tutorial we learn how to install roslang on Ubuntu 18.04.

What is roslang

roslang is:

This package is part of Robot OS (ROS). It is mainly used to find client libraries (via ‘rospack depends-on1 roslang’). The roslang package is only of interest to those implementing a ROS client library. Client libraries mark themselves as such by depending on the roslang package, which allows rosbuild and other tools to perform appropriate actions, such as msg- and srv-based code generation. The roslang package itself contains no actual code.

There are three methods to install roslang 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 roslang Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install roslang

Install roslang Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install roslang

Install roslang 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 roslang using aptitude by running the following command:

sudo aptitude -y install roslang

How To Uninstall roslang on Ubuntu 18.04

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

sudo apt-get remove roslang

Uninstall roslang And Its Dependencies

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

sudo apt-get -y autoremove roslang

Remove roslang Configurations and Data

To remove roslang configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge roslang

Remove roslang configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge roslang

References

Summary

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