How To Install cflow on Ubuntu 22.04

In this tutorial we learn how to install cflow on Ubuntu 22.04. cflow is control flow analyzer for C source files

Introduction

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

What is cflow

cflow is:

GNU cflow analyzes a collection of source files written in C language and outputs a graph charting dependencies between various functions.

GNU cflow is able to produce two kinds of graphs: direct and reverse. Direct graph begins with the main function (or any other function), and displays recursively all functions called by it. In contrast, reverse graph is a set of subgraphs, charting for each function its callers, in the reverse order. Due to their tree-like appearance, graphs can also be called trees.

In addition to these two output modes, cflow is able to produce a cross-reference listing of all the symbols encountered in the input files.

GNU cflow also provides detailed control over symbols that will appear in its output, allowing to omit those that are of no interest to the user. The exact appearance of the output graphs is also configurable.

There are three methods to install cflow 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 cflow 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 using apt-get by running the following command:

sudo apt-get -y install cflow

Install cflow Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install cflow

Install cflow 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 using aptitude by running the following command:

sudo aptitude -y install cflow

How To Uninstall cflow on Ubuntu 22.04

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

sudo apt-get remove cflow

Uninstall cflow And Its Dependencies

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

sudo apt-get -y autoremove cflow

Remove cflow Configurations and Data

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

sudo apt-get -y purge cflow

Remove cflow configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge cflow

References

Summary

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