How To Install ragel on CentOS 7

In this tutorial we learn how to install ragel on CentOS 7. ragel is Finite state machine compiler

Introduction

In this tutorial we learn how to install ragel on CentOS 7.

What is ragel

Ragel compiles executable finite state machines from regular languages. Ragel targets C, C++ and ASM. Ragel state machines can not only recognize byte sequences as regular expression machines do, but can also execute code at arbitrary points in the recognition of a regular language. Code embedding is done using inline operators that do not disrupt the regular language syntax.

We can use yum or dnf to install ragel on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install ragel.

Install ragel on CentOS 7 Using yum

Update yum database with yum using the following command.

sudo yum makecache

After updating yum database, We can install ragel using yum by running the following command:

sudo yum -y install ragel

Install ragel on CentOS 7 Using dnf

If you don’t have dnf installed you can install DNF on CentOS 7 first. Update yum database with dnf using the following command.

sudo dnf makecache

After updating yum database, We can install ragel using dnf by running the following command:

sudo dnf -y install ragel

How To Uninstall ragel on CentOS 7

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

sudo dnf remove ragel

References

Summary

In this tutorial we learn how to install ragel on CentOS 7 using yum and dnf.