yum

1.list all packages to update
#yum check-update

2.install all update packages
#yum update

3.list all packages to install
#yum list

4.install single package
#yum install k3b

5.Search single package
#yum search openvpn

6.Find some infomation about package
#yum info openvpn

7.Remove installed package
#yum remove openvpn

8.List rpms for you installed from repos
#yum list extras

9.Install speeds up the yum repoes
#su -c 'yum install yum-presto'

10.Install yum graphical user interface
#yum -y install yumex