Yum

Yum(Yellowdog Updater Modified) in RedHat Linux:

•  To check system updates available for all installed packages

 $yum-check-update 

• To update a particular package

$yum update <package> 

• To update all packages and their dependencies, since it updates kernal also minor release updates are done with the same

$yum update

• You can search all RPM package names, descriptions and summaries by using the following command:

$yum search <term>

• Lists all installed and available packages

$yum list all

• Lists all packages installed on your system

$yum list installed

• Lists all available packages in all enabled repositories.

$yum list available

• Lists the repository ID, name, and number of packages it provides for each enabled repository.

$yum repolist

• To display information about one or more packages

$yum info <package name>

• To Install package 

$yum install <package name>

• To Remove a package

$yum remove <package name>

For more info click here

• To display a list of twenty most recent transactions

$yum history list

 By default it displays last 20 transactions for all use append "all"

• To display only transactions in a given range, use the command in the following form:

$yum history list startid..endid

Eg:yum history list 1..5

• To display more information on a particular transaction:

$yum history info <id>

• To undo previous transaction eg to uninstall previously installed package

$yum history undo <id>

• To redo previous transaction eg to install previously uninstalled package

$yum history redo <id>