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fedora yum command

CentOS / RHEL Configure Yum Automatic Update Retrieval and Installation

The yum command line tool is used to install and update software packages under RHEL / CentOS Linux server. I know how to apply updates using yum update command line, but I'd like to use cron to manually update packages where appropriate. How do I configure yum to install software patches / updates automatically with cron?
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Redhat Linux yum grouplist and groupinstall Option Not Working

I'm trying to install all the default packages by group using 'yum groupinstall groupname' command under RHEL v5.x. But, grouplist, groupinstall, and groupdelete options are not working with yum. How do I fix this issue and make sure yum command works with software groups under Redhat Enterprise Linux to increase my productivity?
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How To Download a RPM Package Using yum Command Without Installing On Linux

I would like to only download the packages via yum and not install/update them. How do I download a RPM package using yum command under CentOS Enterprise Linux server 5.x or RHEL 5.x systems?
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CentOS / Red Hat Linux Find Out Latest Available Updated Package or Kernel Version

Q. I know how to find out current running kernel version under CentOS Enterprise Linux 4.6 x86_64, but how do I find out latest available kernel version? How do I find out if it's the latest one? How to find the latest release version for package called xyz or kernel package?
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yum command: Update / Install Packages Under Redhat Enterprise / CentOS Linux Version 5.x

How do I use yum command to update and patch my Red hat Enterprise Linux / CentOS Linux version 5.x server via RHN / Internet? Can I use up2date command under RHEL 5?
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