Managing yum history

An often overlooked feature of yum is the history. It allows you to perform a load of additional features that can save your skin in an enterprise environment.

It allows you to turn back the proverbial clock to the last functioning state of an application should there be an issue with a package update, without having to worry about dependencies and so on.

How to do it…

In this recipe, I'll show you a couple of the most used yum history features.

Your yum history

Use the following command to show your yum history:

~]# yum history list

The preceding command will list the output, as follows:

Information about a yum transaction or package

Show the details of a yum transaction by executing the following command:

~]# yum history info 1

This will show you all about this single transaction:

Show the details of a package installed with yum through the following:

~]# yum history info ntp

This will show information about all the transactions that have modified the ntp package in some way...