How To Install rubygem-ffi on CentOS 7

In this tutorial we learn how to install rubygem-ffi on CentOS 7. rubygem-ffi is FFI Extensions for Ruby

Introduction

In this tutorial we learn how to install rubygem-ffi on CentOS 7.

What is rubygem-ffi

Ruby-FFI is a ruby extension for programmatically loading dynamic libraries, binding functions within them, and calling those functions from Ruby code. Moreover, a Ruby-FFI extension works without changes on Ruby and JRuby. Discover why should you write your next extension using Ruby-FFI here[http

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

Install rubygem-ffi on CentOS 7 Using yum

Update yum database with yum using the following command.

sudo yum makecache

After updating yum database, We can install rubygem-ffi using yum by running the following command:

sudo yum -y install rubygem-ffi

Install rubygem-ffi 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 rubygem-ffi using dnf by running the following command:

sudo dnf -y install rubygem-ffi

How To Uninstall rubygem-ffi on CentOS 7

To uninstall only the rubygem-ffi package we can use the following command:

sudo dnf remove rubygem-ffi

References

Summary

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