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How To's Tutorials

Yum Command - RPM Based Package Manager with Practical Examples

 

What is Yum …... ?

 

YUM Stands for  Yellowdog Updater Modified. YUM is an interactive, rpm based, package manager. Yum is available in different  Linux OS Like Redhat , Centos , Fedora etc. It can also  perform  installation  of  new packages,  removal of old packages and perform queries on the installed and/or available packages among many other commands/services.

 

Yum Solves the Package dependencies problems which is generally found in RPM Command .

 

Syntax :  yum [options] [command] [package ...]

 

Example :1 Install a Package (e.g Thunderbird)

 

 

In above command, to install Thunderbird we have press Y for confirmation,  so to avoid this we can pass “y” option in yum command so that it automatically confirm and install the package.

 

[root@master ~]# yum -y install thunderbird

 

Example:2  Remove a Package (e.g thunderbird)

 

 

Example:3  Check whether any updates are available for your system or not .

 

Below Command will  list no of  the packages to be updated

 

[root@master ~]# yum check-update

 

To update a particular package to a specific version , use  “update-to” option in yum command.

 

Example:4  To display information about a specific package(e.g httpd) use below command

 

 

To List the  information about available packages , example

 

 

Example:5 Search  packages when we  know something about the package but aren’t sure of  it’s  name

 

 

Example:6  To find out which package provides a specific  file like “/etc/inittab”

 

 

Example:7 To Install all the packages of specific Group, use “groupinstall” option.

 

To install all packages of “Development tools” :

 

[root@master ~]# yum groupinstall 'Development tools'

 

To list  all the  available groups from all yum repos.

 

[root@master ~]# yum grouplist

 

Example:8 To view history of a package what had happened  in  past  transactions like when it was installed , upgraded and removed.

 

Syntax :  # yum history <info/list/packages-list/packages-info/summary>  package-Name

 

 

 

 

Example:9  View and install security updates on your system. First Install the security plugin using below yum command

 

[root@master ~]# yum install yum-security

 

To list all Available Security Updates

 

[root@master ~]# yum list-security

 

Ashutosh Sinha on, 2013-05-03 18:48:06
this is very useful for me to collect more information about Linux commands....
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