This document discusses how to manage the history of yum commands. It describes the various yum history commands that allow you to view statistics, summaries, lists of packages and transactions. These commands include yum history stats, yum history summary, yum history list, yum history package-list, yum history info, yum history redo, yum history undo, and yum history new. The yum history feature allows users to view past yum actions, rollback changes, and clear the history log.

1. How To Manage Yum History
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Table of Contents
Overview.......................................................................................................................................................1
Applies To......................................................................................................................................................1
Yum Options..................................................................................................................................................1
Yum History...................................................................................................................................................1
History Statistics........................................................................................................................................1
History Summary.......................................................................................................................................2
History List ................................................................................................................................................2
History Package List ..................................................................................................................................3
History Transaction Info............................................................................................................................3
History Redo..............................................................................................................................................4
History Undo.............................................................................................................................................5
History New...............................................................................................................................................5

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Overview
The purpose of this guide is to know the usage of YUM (Yellowdog updater modified). It is an automatic
updater and package installer/remover for rpm system(s).
One of the main features, it automatically identifies dependencies and ensures as to what packages
needs to be installed to complete requested package installation.
You can also utilize yum to install a group of packages, one of such group is “Development Tools”.
Yum has a plugin interface for adding simple features. Yum can also be used python programs via its
module interface.
yum clean, is cache option will help in managing the disk space at regular intervals on the system.
Applies To
 Linux flavor where yum is installed
 Tested on CentOS 7, RHEL 7
Yum Options
Yum command has different options for performing different type of package administration, few of these
are discussed in this topic.
Yum History
The purpose of yum history is to view yum transaction history information like package(s) updated,
removed, installed along with the user who performed these action(s), some of these options are to list, ,
rollback, erase and repeat the yum commands from the history.
History Statistics
To view the yum statistics, run the command;
yum history stats

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History Summary
To view the yum brief summary of all operations, run the command;
yum history summary
History List
To view the yum list or list all operations each action is associated with a transaction ID, run the command;
yum history list or
yum history

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History Package List
To view the specific packages related actions performed along with transaction ID associated with the
action(s), run the command;
yum history package-list psacct*
History Transaction Info
To view complete transaction information for a specific transaction ID, run the command;
yum history info 5
Note: Without transaction ID, the command will list last transaction ID information.

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History Redo
To redo a specific transaction ID, run the command;
yum history redo 48

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History Undo
To undo / rollback a specific transaction ID, run the command;
yum history undo 46
History New
To delete and start yum history afresh, run the command;
yum history new
yum history