yum : Yellow dog Updater, Modified

automated software installation and update for linux
yum is software installation tool for Red hat linux and Fedora Linux. It is a complete software management system. yum is designed to use over network/internet. It does not use CDROM to install packages. If you are using fedora you don't have to install it, it is part of fedora itself.

In the case u don't have yum, then u can download yum from project home page http://linux.duke.edu/projects/yum/download.ptml
u can Install using.(it is avaliable in rmp)
# rpm -ivh yup*
U can Configure yum editing /etc/yum.conf
# emacs /etc/yum.conf
Append or edit code as follows:
[base]
name=Fedora Core $releasever - $basearch - Base
baseurl=http://apt.sw.be/fedora/$releasever/en/$basearch/dag
baseurl=http://mirrors.kernel.org/fedora/core/$releasever/$basearch/os
Install GPG signature key with rpm command:
# rpm --import http://dag.wieers.com/packages/RPM-GPG-KEY.dag.txt
and other keys too (if any using above command)
Update your package list:
# yum check-update
Install a new package called test
# yum install test
To update packages
# yum update
To update a single package called test1
# yum update test1
To remove a package called test2
# yum remove test2
To list all packages
# yum list installed
You can search using grep command
# yum list installed | grep test1
Display information on a package called test
# yum info test
To display list of packages for which updates are available
# yum list updates
To clean all cahced packages:
# yum clean packages
To remove all cached packages and old headers:
# yum clean all
Force a fresh download of package
yum clean headers
yum clean oldheaders
To Know more visit :
http://www.die.net/doc/linux/man/man5/yum.conf.5.html http://www.linuxcommand.org/man_pages/yum8.html
http://www.linuxmanpages.com/man8/yum.8.php

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