How To Install perl-UNIVERSAL-can on CentOS 7

In this tutorial we learn how to install perl-UNIVERSAL-can on CentOS 7. perl-UNIVERSAL-can is Hack around people calling UNIVERSAL::can() as a function

Introduction

In this tutorial we learn how to install perl-UNIVERSAL-can on CentOS 7.

What is perl-UNIVERSAL-can

The UNIVERSAL class provides a few default methods so that all objects can use them. Object orientation allows programmers to override these methods in subclasses to provide more specific and appropriate behavior. Some authors call methods in the UNIVERSAL class on potential invocants as functions, bypassing any possible overriding. This is wrong and you should not do it. Unfortunately, not everyone heeds this warning and their bad code can break your good code.

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

Install perl-UNIVERSAL-can on CentOS 7 Using yum

Update yum database with yum using the following command.

sudo yum makecache

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

sudo yum -y install perl-UNIVERSAL-can

Install perl-UNIVERSAL-can 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 perl-UNIVERSAL-can using dnf by running the following command:

sudo dnf -y install perl-UNIVERSAL-can

How To Uninstall perl-UNIVERSAL-can on CentOS 7

To uninstall only the perl-UNIVERSAL-can package we can use the following command:

sudo dnf remove perl-UNIVERSAL-can

References

Summary

In this tutorial we learn how to install perl-UNIVERSAL-can on CentOS 7 using yum and dnf.