yum command

How to use YUM to install and uninstall packages

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Introduction

To update the system applying the most recent corrective patches of security and to the operating system is not as difficult as many do not suppose, nor either must be a hell of dependencies between packages RPM as some others argue. The reality of the things is that it is much very simple and single requires of good bandwidth or very many patience. Next we presented/displayed the procedures to use yum and to make easily what some denominate "horrible, difficult and complicated ".

Please note there are some changes that apply to Fedora Core 3. You will need to install GPG Key for yum in FC3. 

Creating Yum Repo's For FC3. 

To update system. Update of the system with all the dependencies that are necessary:

Code:

yum update

Searches. To make a search of some package or term in the data base in some of the formed deposits yum in the system:

Code:

yum search any-package

Example:

Code:

yum search httpd

I hope this will help you understand how to use yum more effeciently. Any erros in this how please notify me.
Consultation of information. To consult the information contained in a package in individual:

Code:

yum info any-package

Example:

Code:

yum info httpd

Installation of packages. Installation of paquetería with automatic resolution of dependencies:

Code:

yum install any-package

Example.

Code:

yum install gkrellm

Uninstalling packages. Desinstalación of packages along with everything what it depends on these:

Code:

yum remove any-package

Example.

Code:

yum remove gkrellm

Listing Packages. The following thing will list all the packages available in the data base yum and that can settle:

Code:

available yum list|less

The following thing will list all the packages installed in the system:

Code:

yum list installed|less

The following thing will list all the packages installed in the system and that can (they must) be updated:

Code:

yum list updates|less

Cleaning of the system.

Yum leaves as result of its use heads and packages RPM stored in the interior of the directory located in the route /var/cache/yum/. Particularly the packages RPM that have settled can occupy much space and is by such reason agrees to eliminate them once no longer they have utility. Also it agrees to do the same with the old heads of packages that no longer are in the data base. In order to make the corresponding cleaning, the following thing can be executed:

Code:

yum clean all

Group install

Code:

yum groupinstall "groupname"

Dont forget the quotation marks for group install.

• To update some software, you type:
  yum update packagename
  If you leave out "packagename" yum will update all your software.
• To see what updates are available, you can do:
  yum check-update

To search for a package, you can do:

yum search word

• Certificate issue

If yum is complaining when you’re trying to install a file you downloaded. Try to temporary change the variable gpgcheck=1 to gpgcheck=0 in the file/etc/yum.conf. This disables the signature checking.

• Repo query

After I have installed a package by yum (with multiple repository configured), how can I found from which repository it has been installed? If I run yum info package name (or yum list package name), I can found only that the package is "installed".

With yum-utils installed, repoquery will provide the information you seek (here 'epel' being the repository).

└─[$]> repoquery -i cherokee

Name        : cherokee
Version     : 0.99.49
Release     : 1.el5
Architecture: i386
Size        : 8495964
Packager    : Fedora Project
Group       : Applications/Internet
URL         : http://www.cherokee-project.com/
Repository  : epel
Summary     : Flexible and Fast Webserver
Description :
Cherokee is a very fast, flexible and easy to configure Web Server. It supports
the widespread technologies nowadays: FastCGI, SCGI, PHP, CGI, TLS and SSL
encrypted connections, Virtual hosts, Authentication, on the fly encoding,
Apache compatible log files, and much more.