Some important usages:
1. To install package
# yum install (
# yum -y install
2. To update package
# yum update
Launch the GUI for yum update
# yum install pirut
# pup
3. To use yum to install instead of rpm.
(Yum will search for dependencies and repositories)
# yum localinstall
4. Uninstalling Package
# yum remove
5. Listing Package
# yum list (
6. Group Install
# yum groupinstall (group-package-name)