How To Install cflow-doc on Ubuntu 20.04

In this tutorial we learn how to install cflow-doc on Ubuntu 20.04. cflow-doc is control flow analyzer for C source files (documentation)

Introduction

In this tutorial we learn how to install cflow-doc on Ubuntu 20.04.

What is cflow-doc

cflow-doc is:

GNU cflow analyzes a collection of C source files and prints a graph, charting control flow within the program.

GNU cflow is able to produce both direct and inverted flowgraphs for C sources. Optionally a cross-reference listing can be generated. Two output formats are implemented: POSIX and GNU (extended).

Input files can optionally be preprocessed before analyzing.

There are three methods to install cflow-doc 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 cflow-doc Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install cflow-doc

Install cflow-doc Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install cflow-doc

Install cflow-doc 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 cflow-doc using aptitude by running the following command:

sudo aptitude -y install cflow-doc

How To Uninstall cflow-doc on Ubuntu 20.04

To uninstall only the cflow-doc package we can use the following command:

sudo apt-get remove cflow-doc

Uninstall cflow-doc And Its Dependencies

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

sudo apt-get -y autoremove cflow-doc

Remove cflow-doc Configurations and Data

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

sudo apt-get -y purge cflow-doc

Remove cflow-doc configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge cflow-doc

References

Summary

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