How To Install rubygem-rails-observers on CentOS 7
Introduction
In this tutorial we learn how to install rubygem-rails-observers on CentOS 7.
What is rubygem-rails-observers
Rails observer (removed from core in Rails 4.0). ActiveModel ActionController
We can use yum or dnf to install rubygem-rails-observers on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install rubygem-rails-observers.
Install rubygem-rails-observers 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-rails-observers using yum by running the following command:
sudo yum -y install rubygem-rails-observers
Install rubygem-rails-observers 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-rails-observers using dnf by running the following command:
sudo dnf -y install rubygem-rails-observers
How To Uninstall rubygem-rails-observers on CentOS 7
To uninstall only the rubygem-rails-observers package we can use the following command:
sudo dnf remove rubygem-rails-observers
References
Summary
In this tutorial we learn how to install rubygem-rails-observers on CentOS 7 using yum and dnf.